From 6df85adf3eff596ba7414c53f85db2ab088161e3 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Tue, 12 Sep 2006 11:25:00 +0000
Subject: hiperfifo.c by Jeff Pohlmeyer

---
 docs/examples/hiperfifo.c | 412 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 412 insertions(+)
 create mode 100644 docs/examples/hiperfifo.c

(limited to 'docs/examples/hiperfifo.c')

diff --git a/docs/examples/hiperfifo.c b/docs/examples/hiperfifo.c
new file mode 100644
index 000000000..625ea761f
--- /dev/null
+++ b/docs/examples/hiperfifo.c
@@ -0,0 +1,412 @@
+/*****************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * $Id$
+ *
+ * Example application source code using the multi socket interface to
+ * download many files at once.
+ *
+ * Written by Jeff Pohlmeyer
+
+Requires libevent and a (POSIX?) system that has mkfifo().
+
+This is an adaptation of libcurl's "hipev.c" and libevent's "event-test.c"
+sample programs.
+
+When running, the program creates the named pipe "hiper.fifo"
+
+Whenever there is input into the fifo, the program reads the input as a list
+of URL's and creates some new easy handles to fetch each URL via the
+curl_multi "hiper" API.
+
+
+Thus, you can try a single URL:
+  % echo http://www.yahoo.com > hiper.fifo
+
+Or a whole bunch of them:
+  % cat my-url-list > hiper.fifo
+
+The fifo buffer is handled almost instantly, so you can even add more URL's
+while the previous requests are still being downloaded.
+
+Note:
+  For the sake of simplicity, URL length is limited to 1023 char's !
+
+This is purely a demo app, all retrieved data is simply discarded by the write
+callback.
+
+*/
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <time.h>
+#include <unistd.h>
+#include <sys/poll.h>
+#include <curl/curl.h>
+#include <event.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <errno.h>
+
+
+#define MSG_OUT stdout /* Send info to stdout, change to stderr if you want */
+
+
+/* Global information, common to all connections */
+typedef struct _GlobalInfo {
+  struct event fifo_event;
+  struct event timer_event;
+  CURLM *multi;
+  int prev_running;
+  int still_running;
+  FILE* input;
+} GlobalInfo;
+
+
+/* Information associated with a specific easy handle */
+typedef struct _ConnInfo {
+  CURL *easy;
+  char *url;
+  GlobalInfo *global;
+  char error[CURL_ERROR_SIZE];
+} ConnInfo;
+
+
+/* Information associated with a specific socket */
+typedef struct _SockInfo {
+  curl_socket_t sockfd;
+  CURL *easy;
+  int action;
+  long timeout;
+  struct event ev;
+  int evset;
+  GlobalInfo *global;
+} SockInfo;
+
+
+
+/* Update the event timer after curl_multi library calls */
+static void update_timeout(GlobalInfo *g)
+{
+  long timeout_ms;
+  struct timeval timeout;
+
+  curl_multi_timeout(g->multi, &timeout_ms);
+  timeout.tv_sec = timeout_ms/1000;
+  timeout.tv_usec = (timeout_ms%1000)*1000;
+  evtimer_add(&g->timer_event, &timeout);
+}
+
+
+
+/* Die if we get a bad CURLMcode somewhere */
+void mcode_or_die(char *where, CURLMcode code) {
+  if ( CURLM_OK != code ) {
+    char *s;
+    switch (code) {
+      case     CURLM_CALL_MULTI_PERFORM: s="CURLM_CALL_MULTI_PERFORM"; break;
+      case     CURLM_OK:                 s="CURLM_OK";                 break;
+      case     CURLM_BAD_HANDLE:         s="CURLM_BAD_HANDLE";         break;
+      case     CURLM_BAD_EASY_HANDLE:    s="CURLM_BAD_EASY_HANDLE";    break;
+      case     CURLM_OUT_OF_MEMORY:      s="CURLM_OUT_OF_MEMORY";      break;
+      case     CURLM_INTERNAL_ERROR:     s="CURLM_INTERNAL_ERROR";     break;
+      case     CURLM_BAD_SOCKET:         s="CURLM_BAD_SOCKET";         break;
+      case     CURLM_UNKNOWN_OPTION:     s="CURLM_UNKNOWN_OPTION";     break;
+      case     CURLM_LAST:               s="CURLM_LAST";               break;
+      default: s="CURLM_unknown";
+    }
+    fprintf(MSG_OUT, "ERROR: %s returns %s\n", where, s);
+    exit(code);
+  }
+}
+
+
+
+/* Check for completed transfers, and remove their easy handles */
+static void check_run_count(GlobalInfo *g)
+{
+  if (g->prev_running > g->still_running) {
+    char *eff_url=NULL;
+    CURLMsg *msg;
+    int msgs_left;
+    ConnInfo *conn=NULL;
+    CURL*easy;
+    CURLcode res;
+
+    fprintf(MSG_OUT, "REMAINING: %d\n", g->still_running);
+    /*
+      I am still uncertain whether it is safe to remove an easy handle
+      from inside the curl_multi_info_read loop, so here I will search
+      for completed transfers in the inner "while" loop, and then remove
+      them in the outer "do-while" loop...
+   */
+    do {
+      easy=NULL;
+      while ((msg = curl_multi_info_read(g->multi, &msgs_left))) {
+        if (msg->msg == CURLMSG_DONE) {
+          easy=msg->easy_handle;
+          res=msg->data.result;
+        }
+      }
+      if (easy) {
+          curl_easy_getinfo(easy, CURLINFO_PRIVATE, &conn);
+          curl_easy_getinfo(easy, CURLINFO_EFFECTIVE_URL, &eff_url);
+          fprintf(MSG_OUT, "DONE: %s => (%d) %s\n", eff_url, res, conn->error);
+          curl_multi_remove_handle(g->multi, easy);
+          free(conn->url);
+          curl_easy_cleanup(easy);
+          free(conn);
+      }
+    } while ( easy );
+  }
+  g->prev_running = g->still_running;
+}
+
+
+
+/* Called by libevent when we get action on a multi socket */
+static void event_cb(int fd, short kind, void *userp)
+{
+  GlobalInfo *g = (GlobalInfo*) userp;
+  CURLMcode rc;
+
+  do {
+    rc = curl_multi_socket(g->multi, fd, &g->still_running);
+  } while (rc == CURLM_CALL_MULTI_PERFORM);
+  mcode_or_die("event_cb: curl_multi_socket", rc);
+  check_run_count(g);
+  if(g->still_running) {
+    update_timeout(g);
+  } else {
+    fprintf(MSG_OUT, "last transfer done, kill timeout\n");
+    if (evtimer_pending(&g->timer_event, NULL)) {
+      evtimer_del(&g->timer_event);
+    }
+  }
+}
+
+
+
+/* Called by libevent when our timeout expires */
+static void timer_cb(int fd, short kind, void *userp)
+{
+  (void)fd;
+  (void)kind;
+  GlobalInfo *g = (GlobalInfo *)userp;
+  CURLMcode rc;
+
+  do {
+    rc = curl_multi_socket(g->multi, CURL_SOCKET_TIMEOUT, &g->still_running);
+  } while (rc == CURLM_CALL_MULTI_PERFORM);
+  mcode_or_die("timer_cb: curl_multi_socket", rc);
+  check_run_count(g);
+  if ( g->still_running ) { update_timeout(g); }
+}
+
+
+
+/* Clean up the SockInfo structure */
+static void remsock(SockInfo *f)
+{
+  if (!f) { return; }
+  if (f->evset) { event_del(&f->ev); }
+  free(f);
+}
+
+
+
+/* Assign information to a SockInfo structure */
+static void setsock(SockInfo*f, curl_socket_t s, CURL*e, int act, GlobalInfo*g)
+{
+  int kind =
+     (act&CURL_POLL_IN?EV_READ:0)|(act&CURL_POLL_OUT?EV_WRITE:0)|EV_PERSIST;
+
+  f->sockfd = s;
+  f->action = act;
+  f->easy = e;
+  if (f->evset) { event_del(&f->ev); }
+  event_set( &f->ev, f->sockfd, kind, event_cb, g);
+  f->evset=1;
+  event_add(&f->ev, NULL);
+}
+
+
+
+/* Initialize a new SockInfo structure */
+static void addsock(curl_socket_t s, CURL *easy, int action, GlobalInfo *g) {
+  SockInfo *fdp = calloc(sizeof(SockInfo), 1);
+
+  fdp->global = g;
+  setsock(fdp, s, easy, action, g);
+  curl_multi_assign(g->multi, s, fdp);
+}
+
+
+
+/* CURLMOPT_SOCKETFUNCTION */
+static int sock_cb(CURL *e, curl_socket_t s, int what, void *cbp, void *sockp)
+{
+  GlobalInfo *g = (GlobalInfo*) cbp;
+  SockInfo *fdp = (SockInfo*) sockp;
+  char *whatstr[]={ "none", "IN", "OUT", "INOUT", "REMOVE" };
+
+  fprintf(MSG_OUT,
+          "socket callback: s=%d e=%p what=%s ", s, e, whatstr[what]);
+  if (what == CURL_POLL_REMOVE) {
+    fprintf(MSG_OUT, "\n");
+    remsock(fdp);
+  } else {
+    if (!fdp) {
+      fprintf(MSG_OUT, "Adding data: %s%s\n",
+             what&CURL_POLL_IN?"READ":"",
+             what&CURL_POLL_OUT?"WRITE":"" );
+      addsock(s, e, what, g);
+    }
+    else {
+      fprintf(MSG_OUT,
+        "Changing action from %d to %d\n", fdp->action, what);
+      setsock(fdp, s, e, what, g);
+    }
+  }
+  return 0;
+}
+
+
+
+/* CURLOPT_WRITEFUNCTION */
+static size_t write_cb(void *ptr, size_t size, size_t nmemb, void *data)
+{
+  size_t realsize = size * nmemb;
+  ConnInfo *conn = (ConnInfo*) data;
+  (void)ptr;
+  (void)conn;
+  return realsize;
+}
+
+
+/* CURLOPT_PROGRESSFUNCTION */
+int prog_cb (void *p, double dltotal, double dlnow, double ult, double uln)
+{
+  ConnInfo *conn = (ConnInfo *)p;
+  fprintf(MSG_OUT, "Progress: %s (%g/%g)\n", conn->url, dlnow, dltotal);
+  return 0;
+}
+
+
+/* Create a new easy handle, and add it to the global curl_multi */
+void new_conn(char *url, GlobalInfo *g ) {
+  ConnInfo *conn;
+  CURLMcode rc;
+
+  conn = calloc(1, sizeof(ConnInfo));
+  memset(conn, 0, sizeof(ConnInfo));
+  conn->error[0]='\0';
+
+  conn->easy = curl_easy_init();
+  if (!conn->easy) {
+    fprintf(MSG_OUT, "curl_easy_init() failed, exiting!\n");
+    exit(2);
+  }
+  conn->global = g;
+  conn->url = strdup(url);
+  curl_easy_setopt(conn->easy, CURLOPT_URL, conn->url);
+  curl_easy_setopt(conn->easy, CURLOPT_WRITEFUNCTION, write_cb);
+  curl_easy_setopt(conn->easy, CURLOPT_WRITEDATA, &conn);
+  curl_easy_setopt(conn->easy, CURLOPT_VERBOSE, 0);
+  curl_easy_setopt(conn->easy, CURLOPT_ERRORBUFFER, conn->error);
+  curl_easy_setopt(conn->easy, CURLOPT_PRIVATE, conn);
+  curl_easy_setopt(conn->easy, CURLOPT_NOPROGRESS, 0);
+  curl_easy_setopt(conn->easy, CURLOPT_PROGRESSFUNCTION, prog_cb);
+  curl_easy_setopt(conn->easy, CURLOPT_PROGRESSDATA, conn);
+  fprintf(MSG_OUT,
+          "Adding easy %p to multi %p (%s)\n", conn->easy, g->multi, url);
+  rc =curl_multi_add_handle(g->multi, conn->easy);
+  mcode_or_die("new_conn: curl_multi_add_handle", rc);
+  do {
+    rc = curl_multi_socket_all(g->multi, &g->still_running);
+  } while (CURLM_CALL_MULTI_PERFORM == rc);
+  mcode_or_die("new_conn: curl_multi_socket_all", rc);
+  check_run_count(g);
+}
+
+
+
+/* This gets called whenever data is received from the fifo */
+void fifo_cb(int fd, short event, void *arg) {
+  char s[1024];
+  long int rv=0;
+  int n=0;
+  GlobalInfo *g = (GlobalInfo *)arg;
+
+  do {
+    s[0]='\0';
+    rv=fscanf(g->input, "%1023s%n", s, &n);
+    s[n]='\0';
+    if ( n && s[0] ) {
+      new_conn(s,arg);  /* if we read a URL, go get it! */
+    } else break;
+  } while ( rv != EOF);
+}
+
+
+
+/* Create a named pipe and tell libevent to monitor it */
+int init_fifo (GlobalInfo *g) {
+  struct stat st;
+  char *fifo = "hiper.fifo";
+  int socket;
+
+  fprintf(MSG_OUT, "Creating named pipe \"%s\"\n", fifo);
+  if (lstat (fifo, &st) == 0) {
+    if ((st.st_mode & S_IFMT) == S_IFREG) {
+      errno = EEXIST;
+      perror("lstat");
+      exit (1);
+    }
+  }
+  unlink(fifo);
+  if (mkfifo (fifo, 0600) == -1) {
+    perror("mkfifo");
+    exit (1);
+  }
+  socket = open(fifo, O_RDWR | O_NONBLOCK, 0);
+  if (socket == -1) {
+     perror("open");
+     exit (1);
+  }
+  g->input = fdopen(socket, "r");
+
+  fprintf(MSG_OUT, "Now, pipe some URL's into > %s\n", fifo);
+  event_set(&g->fifo_event, socket, EV_READ | EV_PERSIST, fifo_cb, g);
+  event_add(&g->fifo_event, NULL);
+  return (0);
+}
+
+
+
+int main(int argc, char **argv)
+{
+  GlobalInfo g;
+  CURLMcode rc;
+
+  memset(&g, 0, sizeof(GlobalInfo));
+  event_init();
+  init_fifo(&g);
+  g.multi = curl_multi_init();
+  evtimer_set(&g.timer_event, timer_cb, &g);
+  curl_multi_setopt(g.multi, CURLMOPT_SOCKETFUNCTION, sock_cb);
+  curl_multi_setopt(g.multi, CURLMOPT_SOCKETDATA, &g);
+  do {
+    rc = curl_multi_socket_all(g.multi, &g.still_running);
+  } while (CURLM_CALL_MULTI_PERFORM == rc);
+  update_timeout(&g);
+  event_dispatch();
+  curl_multi_cleanup(g.multi);
+  return 0;
+}
-- 
cgit v1.2.1


From 56fcf85ab61b4dc44796f1241e1b7c2349afc6ea Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Sun, 8 Oct 2006 22:19:25 +0000
Subject: slightly improved

---
 docs/examples/hiperfifo.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'docs/examples/hiperfifo.c')

diff --git a/docs/examples/hiperfifo.c b/docs/examples/hiperfifo.c
index 625ea761f..f640bf9dc 100644
--- a/docs/examples/hiperfifo.c
+++ b/docs/examples/hiperfifo.c
@@ -98,6 +98,9 @@ static void update_timeout(GlobalInfo *g)
   struct timeval timeout;
 
   curl_multi_timeout(g->multi, &timeout_ms);
+  if(timeout_ms < 0)
+    return;
+
   timeout.tv_sec = timeout_ms/1000;
   timeout.tv_usec = (timeout_ms%1000)*1000;
   evtimer_add(&g->timer_event, &timeout);
@@ -152,6 +155,7 @@ static void check_run_count(GlobalInfo *g)
         if (msg->msg == CURLMSG_DONE) {
           easy=msg->easy_handle;
           res=msg->data.result;
+          break;
         }
       }
       if (easy) {
-- 
cgit v1.2.1


From 1afb67e31b3e8f952e39e4de4f1abeac3fc84376 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Wed, 2 May 2007 13:52:38 +0000
Subject: - Jeff Pohlmeyer improved the hiperfifo.c example to use the  
 CURLMOPT_TIMERFUNCTION callback option.

---
 docs/examples/hiperfifo.c | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

(limited to 'docs/examples/hiperfifo.c')

diff --git a/docs/examples/hiperfifo.c b/docs/examples/hiperfifo.c
index f640bf9dc..e8d767133 100644
--- a/docs/examples/hiperfifo.c
+++ b/docs/examples/hiperfifo.c
@@ -92,18 +92,15 @@ typedef struct _SockInfo {
 
 
 /* Update the event timer after curl_multi library calls */
-static void update_timeout(GlobalInfo *g)
+static int multi_timer_cb(CURLM *multi, long timeout_ms, GlobalInfo *g)
 {
-  long timeout_ms;
   struct timeval timeout;
 
-  curl_multi_timeout(g->multi, &timeout_ms);
-  if(timeout_ms < 0)
-    return;
-
   timeout.tv_sec = timeout_ms/1000;
   timeout.tv_usec = (timeout_ms%1000)*1000;
+  fprintf(MSG_OUT, "multi_timer_cb: Setting timeout to %ld ms\n", timeout_ms);
   evtimer_add(&g->timer_event, &timeout);
+  return 0;
 }
 
 
@@ -185,9 +182,7 @@ static void event_cb(int fd, short kind, void *userp)
   } while (rc == CURLM_CALL_MULTI_PERFORM);
   mcode_or_die("event_cb: curl_multi_socket", rc);
   check_run_count(g);
-  if(g->still_running) {
-    update_timeout(g);
-  } else {
+  if ( g->still_running <= 0 ) {
     fprintf(MSG_OUT, "last transfer done, kill timeout\n");
     if (evtimer_pending(&g->timer_event, NULL)) {
       evtimer_del(&g->timer_event);
@@ -210,7 +205,6 @@ static void timer_cb(int fd, short kind, void *userp)
   } while (rc == CURLM_CALL_MULTI_PERFORM);
   mcode_or_die("timer_cb: curl_multi_socket", rc);
   check_run_count(g);
-  if ( g->still_running ) { update_timeout(g); }
 }
 
 
@@ -406,10 +400,11 @@ int main(int argc, char **argv)
   evtimer_set(&g.timer_event, timer_cb, &g);
   curl_multi_setopt(g.multi, CURLMOPT_SOCKETFUNCTION, sock_cb);
   curl_multi_setopt(g.multi, CURLMOPT_SOCKETDATA, &g);
+  curl_multi_setopt(g.multi, CURLMOPT_TIMERFUNCTION, multi_timer_cb);
+  curl_multi_setopt(g.multi, CURLMOPT_TIMERDATA, &g);
   do {
     rc = curl_multi_socket_all(g.multi, &g.still_running);
   } while (CURLM_CALL_MULTI_PERFORM == rc);
-  update_timeout(&g);
   event_dispatch();
   curl_multi_cleanup(g.multi);
   return 0;
-- 
cgit v1.2.1


From 49ce3e5160a9576e797bf87cef012b09d1c54ecb Mon Sep 17 00:00:00 2001
From: Dan Fandrich <dan@coneharvesters.com>
Date: Thu, 12 Jul 2007 21:11:10 +0000
Subject: Fixed some compile warnings and errors and improved portability in
 the examples. Removed ftp3rdparty.c since libcurl doesn't support 3rd party
 FTP transfers any longer.

---
 docs/examples/hiperfifo.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'docs/examples/hiperfifo.c')

diff --git a/docs/examples/hiperfifo.c b/docs/examples/hiperfifo.c
index e8d767133..76e506fb5 100644
--- a/docs/examples/hiperfifo.c
+++ b/docs/examples/hiperfifo.c
@@ -252,7 +252,7 @@ static int sock_cb(CURL *e, curl_socket_t s, int what, void *cbp, void *sockp)
 {
   GlobalInfo *g = (GlobalInfo*) cbp;
   SockInfo *fdp = (SockInfo*) sockp;
-  char *whatstr[]={ "none", "IN", "OUT", "INOUT", "REMOVE" };
+  const char *whatstr[]={ "none", "IN", "OUT", "INOUT", "REMOVE" };
 
   fprintf(MSG_OUT,
           "socket callback: s=%d e=%p what=%s ", s, e, whatstr[what]);
@@ -357,7 +357,7 @@ void fifo_cb(int fd, short event, void *arg) {
 /* Create a named pipe and tell libevent to monitor it */
 int init_fifo (GlobalInfo *g) {
   struct stat st;
-  char *fifo = "hiper.fifo";
+  static const char *fifo = "hiper.fifo";
   int socket;
 
   fprintf(MSG_OUT, "Creating named pipe \"%s\"\n", fifo);
-- 
cgit v1.2.1


From e059efda1b3db101536a2f9da2e9e63b71a554f4 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Fri, 16 May 2008 21:14:50 +0000
Subject: removed lots of warnings

---
 docs/examples/hiperfifo.c | 52 ++++++++++++++++++++++++++---------------------
 1 file changed, 29 insertions(+), 23 deletions(-)

(limited to 'docs/examples/hiperfifo.c')

diff --git a/docs/examples/hiperfifo.c b/docs/examples/hiperfifo.c
index 76e506fb5..065a974ad 100644
--- a/docs/examples/hiperfifo.c
+++ b/docs/examples/hiperfifo.c
@@ -95,6 +95,7 @@ typedef struct _SockInfo {
 static int multi_timer_cb(CURLM *multi, long timeout_ms, GlobalInfo *g)
 {
   struct timeval timeout;
+  (void)multi; /* unused */
 
   timeout.tv_sec = timeout_ms/1000;
   timeout.tv_usec = (timeout_ms%1000)*1000;
@@ -103,12 +104,11 @@ static int multi_timer_cb(CURLM *multi, long timeout_ms, GlobalInfo *g)
   return 0;
 }
 
-
-
 /* Die if we get a bad CURLMcode somewhere */
-void mcode_or_die(char *where, CURLMcode code) {
+static void mcode_or_die(const char *where, CURLMcode code)
+{
   if ( CURLM_OK != code ) {
-    char *s;
+    const char *s;
     switch (code) {
       case     CURLM_CALL_MULTI_PERFORM: s="CURLM_CALL_MULTI_PERFORM"; break;
       case     CURLM_OK:                 s="CURLM_OK";                 break;
@@ -176,6 +176,7 @@ static void event_cb(int fd, short kind, void *userp)
 {
   GlobalInfo *g = (GlobalInfo*) userp;
   CURLMcode rc;
+  (void)kind; /* unused */
 
   do {
     rc = curl_multi_socket(g->multi, fd, &g->still_running);
@@ -195,10 +196,10 @@ static void event_cb(int fd, short kind, void *userp)
 /* Called by libevent when our timeout expires */
 static void timer_cb(int fd, short kind, void *userp)
 {
-  (void)fd;
-  (void)kind;
   GlobalInfo *g = (GlobalInfo *)userp;
   CURLMcode rc;
+  (void)fd;
+  (void)kind;
 
   do {
     rc = curl_multi_socket(g->multi, CURL_SOCKET_TIMEOUT, &g->still_running);
@@ -289,16 +290,21 @@ static size_t write_cb(void *ptr, size_t size, size_t nmemb, void *data)
 
 
 /* CURLOPT_PROGRESSFUNCTION */
-int prog_cb (void *p, double dltotal, double dlnow, double ult, double uln)
+static int prog_cb (void *p, double dltotal, double dlnow, double ult,
+                    double uln)
 {
   ConnInfo *conn = (ConnInfo *)p;
+  (void)ult;
+  (void)uln;
+
   fprintf(MSG_OUT, "Progress: %s (%g/%g)\n", conn->url, dlnow, dltotal);
   return 0;
 }
 
 
 /* Create a new easy handle, and add it to the global curl_multi */
-void new_conn(char *url, GlobalInfo *g ) {
+static void new_conn(char *url, GlobalInfo *g )
+{
   ConnInfo *conn;
   CURLMcode rc;
 
@@ -333,14 +339,15 @@ void new_conn(char *url, GlobalInfo *g ) {
   check_run_count(g);
 }
 
-
-
 /* This gets called whenever data is received from the fifo */
-void fifo_cb(int fd, short event, void *arg) {
+static void fifo_cb(int fd, short event, void *arg)
+{
   char s[1024];
   long int rv=0;
   int n=0;
   GlobalInfo *g = (GlobalInfo *)arg;
+  (void)fd; /* unused */
+  (void)event; /* unused */
 
   do {
     s[0]='\0';
@@ -352,13 +359,12 @@ void fifo_cb(int fd, short event, void *arg) {
   } while ( rv != EOF);
 }
 
-
-
 /* Create a named pipe and tell libevent to monitor it */
-int init_fifo (GlobalInfo *g) {
+static int init_fifo (GlobalInfo *g)
+{
   struct stat st;
   static const char *fifo = "hiper.fifo";
-  int socket;
+  int sockfd;
 
   fprintf(MSG_OUT, "Creating named pipe \"%s\"\n", fifo);
   if (lstat (fifo, &st) == 0) {
@@ -373,25 +379,25 @@ int init_fifo (GlobalInfo *g) {
     perror("mkfifo");
     exit (1);
   }
-  socket = open(fifo, O_RDWR | O_NONBLOCK, 0);
-  if (socket == -1) {
-     perror("open");
-     exit (1);
+  sockfd = open(fifo, O_RDWR | O_NONBLOCK, 0);
+  if (sockfd == -1) {
+    perror("open");
+    exit (1);
   }
-  g->input = fdopen(socket, "r");
+  g->input = fdopen(sockfd, "r");
 
   fprintf(MSG_OUT, "Now, pipe some URL's into > %s\n", fifo);
-  event_set(&g->fifo_event, socket, EV_READ | EV_PERSIST, fifo_cb, g);
+  event_set(&g->fifo_event, sockfd, EV_READ | EV_PERSIST, fifo_cb, g);
   event_add(&g->fifo_event, NULL);
   return (0);
 }
 
-
-
 int main(int argc, char **argv)
 {
   GlobalInfo g;
   CURLMcode rc;
+  (void)argc;
+  (void)argv;
 
   memset(&g, 0, sizeof(GlobalInfo));
   event_init();
-- 
cgit v1.2.1


From c2a84aa6f02ee81c5c3e12b6d35cd0307fb24d7b Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Mon, 19 May 2008 20:40:53 +0000
Subject: change the code style to be more curlish, and changed some of the
 output to be more descriptive and finally set VERBOSE mode to 1 by default

---
 docs/examples/hiperfifo.c | 33 +++++++++++++++++++--------------
 1 file changed, 19 insertions(+), 14 deletions(-)

(limited to 'docs/examples/hiperfifo.c')

diff --git a/docs/examples/hiperfifo.c b/docs/examples/hiperfifo.c
index 065a974ad..a3b3b55eb 100644
--- a/docs/examples/hiperfifo.c
+++ b/docs/examples/hiperfifo.c
@@ -116,10 +116,14 @@ static void mcode_or_die(const char *where, CURLMcode code)
       case     CURLM_BAD_EASY_HANDLE:    s="CURLM_BAD_EASY_HANDLE";    break;
       case     CURLM_OUT_OF_MEMORY:      s="CURLM_OUT_OF_MEMORY";      break;
       case     CURLM_INTERNAL_ERROR:     s="CURLM_INTERNAL_ERROR";     break;
-      case     CURLM_BAD_SOCKET:         s="CURLM_BAD_SOCKET";         break;
       case     CURLM_UNKNOWN_OPTION:     s="CURLM_UNKNOWN_OPTION";     break;
       case     CURLM_LAST:               s="CURLM_LAST";               break;
       default: s="CURLM_unknown";
+        break;
+    case     CURLM_BAD_SOCKET:         s="CURLM_BAD_SOCKET";
+      fprintf(MSG_OUT, "ERROR: %s returns %s\n", where, s);
+      /* ignore this error */
+      return;
     }
     fprintf(MSG_OUT, "ERROR: %s returns %s\n", where, s);
     exit(code);
@@ -213,9 +217,11 @@ static void timer_cb(int fd, short kind, void *userp)
 /* Clean up the SockInfo structure */
 static void remsock(SockInfo *f)
 {
-  if (!f) { return; }
-  if (f->evset) { event_del(&f->ev); }
-  free(f);
+  if (f) {
+    if (f->evset)
+      event_del(&f->ev);
+    free(f);
+  }
 }
 
 
@@ -229,8 +235,9 @@ static void setsock(SockInfo*f, curl_socket_t s, CURL*e, int act, GlobalInfo*g)
   f->sockfd = s;
   f->action = act;
   f->easy = e;
-  if (f->evset) { event_del(&f->ev); }
-  event_set( &f->ev, f->sockfd, kind, event_cb, g);
+  if (f->evset)
+    event_del(&f->ev);
+  event_set(&f->ev, f->sockfd, kind, event_cb, g);
   f->evset=1;
   event_add(&f->ev, NULL);
 }
@@ -246,8 +253,6 @@ static void addsock(curl_socket_t s, CURL *easy, int action, GlobalInfo *g) {
   curl_multi_assign(g->multi, s, fdp);
 }
 
-
-
 /* CURLMOPT_SOCKETFUNCTION */
 static int sock_cb(CURL *e, curl_socket_t s, int what, void *cbp, void *sockp)
 {
@@ -260,16 +265,16 @@ static int sock_cb(CURL *e, curl_socket_t s, int what, void *cbp, void *sockp)
   if (what == CURL_POLL_REMOVE) {
     fprintf(MSG_OUT, "\n");
     remsock(fdp);
-  } else {
+  }
+  else {
     if (!fdp) {
-      fprintf(MSG_OUT, "Adding data: %s%s\n",
-             what&CURL_POLL_IN?"READ":"",
-             what&CURL_POLL_OUT?"WRITE":"" );
+      fprintf(MSG_OUT, "Adding data: %s\n", whatstr[what]);
       addsock(s, e, what, g);
     }
     else {
       fprintf(MSG_OUT,
-        "Changing action from %d to %d\n", fdp->action, what);
+              "Changing action from %s to %s\n",
+              whatstr[fdp->action], whatstr[what]);
       setsock(fdp, s, e, what, g);
     }
   }
@@ -322,7 +327,7 @@ static void new_conn(char *url, GlobalInfo *g )
   curl_easy_setopt(conn->easy, CURLOPT_URL, conn->url);
   curl_easy_setopt(conn->easy, CURLOPT_WRITEFUNCTION, write_cb);
   curl_easy_setopt(conn->easy, CURLOPT_WRITEDATA, &conn);
-  curl_easy_setopt(conn->easy, CURLOPT_VERBOSE, 0);
+  curl_easy_setopt(conn->easy, CURLOPT_VERBOSE, 1);
   curl_easy_setopt(conn->easy, CURLOPT_ERRORBUFFER, conn->error);
   curl_easy_setopt(conn->easy, CURLOPT_PRIVATE, conn);
   curl_easy_setopt(conn->easy, CURLOPT_NOPROGRESS, 0);
-- 
cgit v1.2.1


From e664cd5826d43930fcc5b5dbaedbec94af33184b Mon Sep 17 00:00:00 2001
From: Dan Fandrich <dan@coneharvesters.com>
Date: Thu, 22 May 2008 21:20:07 +0000
Subject: Fixed a surprising number of example programs that were passing int
 arguments to curl_easy_setopt instead of long.

---
 docs/examples/hiperfifo.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'docs/examples/hiperfifo.c')

diff --git a/docs/examples/hiperfifo.c b/docs/examples/hiperfifo.c
index a3b3b55eb..95ca8ad0d 100644
--- a/docs/examples/hiperfifo.c
+++ b/docs/examples/hiperfifo.c
@@ -327,10 +327,10 @@ static void new_conn(char *url, GlobalInfo *g )
   curl_easy_setopt(conn->easy, CURLOPT_URL, conn->url);
   curl_easy_setopt(conn->easy, CURLOPT_WRITEFUNCTION, write_cb);
   curl_easy_setopt(conn->easy, CURLOPT_WRITEDATA, &conn);
-  curl_easy_setopt(conn->easy, CURLOPT_VERBOSE, 1);
+  curl_easy_setopt(conn->easy, CURLOPT_VERBOSE, 1L);
   curl_easy_setopt(conn->easy, CURLOPT_ERRORBUFFER, conn->error);
   curl_easy_setopt(conn->easy, CURLOPT_PRIVATE, conn);
-  curl_easy_setopt(conn->easy, CURLOPT_NOPROGRESS, 0);
+  curl_easy_setopt(conn->easy, CURLOPT_NOPROGRESS, 0L);
   curl_easy_setopt(conn->easy, CURLOPT_PROGRESSFUNCTION, prog_cb);
   curl_easy_setopt(conn->easy, CURLOPT_PROGRESSDATA, conn);
   fprintf(MSG_OUT,
-- 
cgit v1.2.1


From 22d4db1cf2f2661c6d7292c9545051937be25ed2 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Wed, 19 Nov 2008 15:30:41 +0000
Subject: I updated this example to use the modern paradigms of the socket API
 where *_socket_all() and *_socket() aren't used at all but only
 *_socket_action() is.

---
 docs/examples/hiperfifo.c | 33 ++++++++++++++++++++-------------
 1 file changed, 20 insertions(+), 13 deletions(-)

(limited to 'docs/examples/hiperfifo.c')

diff --git a/docs/examples/hiperfifo.c b/docs/examples/hiperfifo.c
index 95ca8ad0d..d19048506 100644
--- a/docs/examples/hiperfifo.c
+++ b/docs/examples/hiperfifo.c
@@ -180,12 +180,17 @@ static void event_cb(int fd, short kind, void *userp)
 {
   GlobalInfo *g = (GlobalInfo*) userp;
   CURLMcode rc;
-  (void)kind; /* unused */
+
+  int action =
+    (kind&EV_READ:CURL_CSELECT_IN)|
+    (kind&EV_WRITE:CURL_CSELECT_OUT);
 
   do {
-    rc = curl_multi_socket(g->multi, fd, &g->still_running);
+    rc = curl_multi_socket_action(g->multi, fd, action, &g->still_running);
   } while (rc == CURLM_CALL_MULTI_PERFORM);
-  mcode_or_die("event_cb: curl_multi_socket", rc);
+
+  mcode_or_die("event_cb: curl_multi_socket_action", rc);
+
   check_run_count(g);
   if ( g->still_running <= 0 ) {
     fprintf(MSG_OUT, "last transfer done, kill timeout\n");
@@ -206,9 +211,10 @@ static void timer_cb(int fd, short kind, void *userp)
   (void)kind;
 
   do {
-    rc = curl_multi_socket(g->multi, CURL_SOCKET_TIMEOUT, &g->still_running);
+    rc = curl_multi_socket_action(g->multi,
+                                  CURL_SOCKET_TIMEOUT, 0, &g->still_running);
   } while (rc == CURLM_CALL_MULTI_PERFORM);
-  mcode_or_die("timer_cb: curl_multi_socket", rc);
+  mcode_or_die("timer_cb: curl_multi_socket_action", rc);
   check_run_count(g);
 }
 
@@ -337,11 +343,9 @@ static void new_conn(char *url, GlobalInfo *g )
           "Adding easy %p to multi %p (%s)\n", conn->easy, g->multi, url);
   rc =curl_multi_add_handle(g->multi, conn->easy);
   mcode_or_die("new_conn: curl_multi_add_handle", rc);
-  do {
-    rc = curl_multi_socket_all(g->multi, &g->still_running);
-  } while (CURLM_CALL_MULTI_PERFORM == rc);
-  mcode_or_die("new_conn: curl_multi_socket_all", rc);
-  check_run_count(g);
+
+  /* note that the add_handle() will set a time-out to trigger very soon so
+     that the necessary socket_action() call will be called by this app */
 }
 
 /* This gets called whenever data is received from the fifo */
@@ -409,13 +413,16 @@ int main(int argc, char **argv)
   init_fifo(&g);
   g.multi = curl_multi_init();
   evtimer_set(&g.timer_event, timer_cb, &g);
+
+  /* setup the generic multi interface options we want */
   curl_multi_setopt(g.multi, CURLMOPT_SOCKETFUNCTION, sock_cb);
   curl_multi_setopt(g.multi, CURLMOPT_SOCKETDATA, &g);
   curl_multi_setopt(g.multi, CURLMOPT_TIMERFUNCTION, multi_timer_cb);
   curl_multi_setopt(g.multi, CURLMOPT_TIMERDATA, &g);
-  do {
-    rc = curl_multi_socket_all(g.multi, &g.still_running);
-  } while (CURLM_CALL_MULTI_PERFORM == rc);
+
+  /* we don't call any curl_multi_socket*() function yet as we have no handles
+     added! */
+
   event_dispatch();
   curl_multi_cleanup(g.multi);
   return 0;
-- 
cgit v1.2.1


From 0b489c7e611bc0bb5e224fc5e680fb7ae57a0557 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Wed, 19 Nov 2008 15:31:55 +0000
Subject: and now it compiles too!

---
 docs/examples/hiperfifo.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

(limited to 'docs/examples/hiperfifo.c')

diff --git a/docs/examples/hiperfifo.c b/docs/examples/hiperfifo.c
index d19048506..4102408ce 100644
--- a/docs/examples/hiperfifo.c
+++ b/docs/examples/hiperfifo.c
@@ -182,8 +182,8 @@ static void event_cb(int fd, short kind, void *userp)
   CURLMcode rc;
 
   int action =
-    (kind&EV_READ:CURL_CSELECT_IN)|
-    (kind&EV_WRITE:CURL_CSELECT_OUT);
+    (kind&EV_READ?CURL_CSELECT_IN:0)|
+    (kind&EV_WRITE?CURL_CSELECT_OUT:0);
 
   do {
     rc = curl_multi_socket_action(g->multi, fd, action, &g->still_running);
@@ -404,7 +404,6 @@ static int init_fifo (GlobalInfo *g)
 int main(int argc, char **argv)
 {
   GlobalInfo g;
-  CURLMcode rc;
   (void)argc;
   (void)argv;
 
-- 
cgit v1.2.1


From 2309b4e330b96bc2e1f8e36b6184015e59544037 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Wed, 24 Mar 2010 11:02:54 +0100
Subject: remove the CVSish $Id$ lines

---
 docs/examples/hiperfifo.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'docs/examples/hiperfifo.c')

diff --git a/docs/examples/hiperfifo.c b/docs/examples/hiperfifo.c
index 4102408ce..f5b422b4a 100644
--- a/docs/examples/hiperfifo.c
+++ b/docs/examples/hiperfifo.c
@@ -5,7 +5,6 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * $Id$
  *
  * Example application source code using the multi socket interface to
  * download many files at once.
-- 
cgit v1.2.1


From 5fb4279ec7199e291d9bf4c903f89395f60a3d31 Mon Sep 17 00:00:00 2001
From: Dirk Manske <dm@nonitor.de>
Date: Thu, 30 Sep 2010 11:33:33 +0200
Subject: multi & hiper examples: updates and cleanups

all multi and hiper examples:

* don't loop curl_multi_perform calls, that was <7.20.0 style, currently
  the exported multi functions will not return CURLM_CALL_MULTI_PERFORM

all hiper examples:
* renamed check_run_count to check_multi_info
* don't  compare current running handle count with previous value, this
  was the wrong way to check for finished requests, simply call
  curl_multi_info_read
* it's also safe to call curl_multi_remove_handle inside the
  curl_multi_info_read loop.

ghiper.c:
* replaced curl_multi_socket (that function is marked as obsolete) calls
  with curl_multi_socket_action calls (as in hiperfifo.c and
  evhiperfifo.c)

ghiper.c and evhiperfifo.c:
* be smart as hiperfifo.c, don't do uncessary curl_multi_* calls in
  new_conn and main
---
 docs/examples/hiperfifo.c | 78 +++++++++++++++++------------------------------
 1 file changed, 28 insertions(+), 50 deletions(-)

(limited to 'docs/examples/hiperfifo.c')

diff --git a/docs/examples/hiperfifo.c b/docs/examples/hiperfifo.c
index f5b422b4a..c9096871b 100644
--- a/docs/examples/hiperfifo.c
+++ b/docs/examples/hiperfifo.c
@@ -62,7 +62,6 @@ typedef struct _GlobalInfo {
   struct event fifo_event;
   struct event timer_event;
   CURLM *multi;
-  int prev_running;
   int still_running;
   FILE* input;
 } GlobalInfo;
@@ -110,7 +109,6 @@ static void mcode_or_die(const char *where, CURLMcode code)
     const char *s;
     switch (code) {
       case     CURLM_CALL_MULTI_PERFORM: s="CURLM_CALL_MULTI_PERFORM"; break;
-      case     CURLM_OK:                 s="CURLM_OK";                 break;
       case     CURLM_BAD_HANDLE:         s="CURLM_BAD_HANDLE";         break;
       case     CURLM_BAD_EASY_HANDLE:    s="CURLM_BAD_EASY_HANDLE";    break;
       case     CURLM_OUT_OF_MEMORY:      s="CURLM_OUT_OF_MEMORY";      break;
@@ -132,44 +130,29 @@ static void mcode_or_die(const char *where, CURLMcode code)
 
 
 /* Check for completed transfers, and remove their easy handles */
-static void check_run_count(GlobalInfo *g)
+static void check_multi_info(GlobalInfo *g)
 {
-  if (g->prev_running > g->still_running) {
-    char *eff_url=NULL;
-    CURLMsg *msg;
-    int msgs_left;
-    ConnInfo *conn=NULL;
-    CURL*easy;
-    CURLcode res;
-
-    fprintf(MSG_OUT, "REMAINING: %d\n", g->still_running);
-    /*
-      I am still uncertain whether it is safe to remove an easy handle
-      from inside the curl_multi_info_read loop, so here I will search
-      for completed transfers in the inner "while" loop, and then remove
-      them in the outer "do-while" loop...
-   */
-    do {
-      easy=NULL;
-      while ((msg = curl_multi_info_read(g->multi, &msgs_left))) {
-        if (msg->msg == CURLMSG_DONE) {
-          easy=msg->easy_handle;
-          res=msg->data.result;
-          break;
-        }
-      }
-      if (easy) {
-          curl_easy_getinfo(easy, CURLINFO_PRIVATE, &conn);
-          curl_easy_getinfo(easy, CURLINFO_EFFECTIVE_URL, &eff_url);
-          fprintf(MSG_OUT, "DONE: %s => (%d) %s\n", eff_url, res, conn->error);
-          curl_multi_remove_handle(g->multi, easy);
-          free(conn->url);
-          curl_easy_cleanup(easy);
-          free(conn);
-      }
-    } while ( easy );
+  char *eff_url;
+  CURLMsg *msg;
+  int msgs_left;
+  ConnInfo *conn;
+  CURL *easy;
+  CURLcode res;
+
+  fprintf(MSG_OUT, "REMAINING: %d\n", g->still_running);
+  while ((msg = curl_multi_info_read(g->multi, &msgs_left))) {
+    if (msg->msg == CURLMSG_DONE) {
+      easy = msg->easy_handle;
+      res = msg->data.result;
+      curl_easy_getinfo(easy, CURLINFO_PRIVATE, &conn);
+      curl_easy_getinfo(easy, CURLINFO_EFFECTIVE_URL, &eff_url);
+      fprintf(MSG_OUT, "DONE: %s => (%d) %s\n", eff_url, res, conn->error);
+      curl_multi_remove_handle(g->multi, easy);
+      free(conn->url);
+      curl_easy_cleanup(easy);
+      free(conn);
+    }
   }
-  g->prev_running = g->still_running;
 }
 
 
@@ -181,16 +164,13 @@ static void event_cb(int fd, short kind, void *userp)
   CURLMcode rc;
 
   int action =
-    (kind&EV_READ?CURL_CSELECT_IN:0)|
-    (kind&EV_WRITE?CURL_CSELECT_OUT:0);
-
-  do {
-    rc = curl_multi_socket_action(g->multi, fd, action, &g->still_running);
-  } while (rc == CURLM_CALL_MULTI_PERFORM);
+    (kind & EV_READ ? CURL_CSELECT_IN : 0) |
+    (kind & EV_WRITE ? CURL_CSELECT_OUT : 0);
 
+  rc = curl_multi_socket_action(g->multi, fd, action, &g->still_running);
   mcode_or_die("event_cb: curl_multi_socket_action", rc);
 
-  check_run_count(g);
+  check_multi_info(g);
   if ( g->still_running <= 0 ) {
     fprintf(MSG_OUT, "last transfer done, kill timeout\n");
     if (evtimer_pending(&g->timer_event, NULL)) {
@@ -209,12 +189,10 @@ static void timer_cb(int fd, short kind, void *userp)
   (void)fd;
   (void)kind;
 
-  do {
-    rc = curl_multi_socket_action(g->multi,
+  rc = curl_multi_socket_action(g->multi,
                                   CURL_SOCKET_TIMEOUT, 0, &g->still_running);
-  } while (rc == CURLM_CALL_MULTI_PERFORM);
   mcode_or_die("timer_cb: curl_multi_socket_action", rc);
-  check_run_count(g);
+  check_multi_info(g);
 }
 
 
@@ -340,7 +318,7 @@ static void new_conn(char *url, GlobalInfo *g )
   curl_easy_setopt(conn->easy, CURLOPT_PROGRESSDATA, conn);
   fprintf(MSG_OUT,
           "Adding easy %p to multi %p (%s)\n", conn->easy, g->multi, url);
-  rc =curl_multi_add_handle(g->multi, conn->easy);
+  rc = curl_multi_add_handle(g->multi, conn->easy);
   mcode_or_die("new_conn: curl_multi_add_handle", rc);
 
   /* note that the add_handle() will set a time-out to trigger very soon so
-- 
cgit v1.2.1


From bcfb9ea34cc7cddbbf74376aa16043681e4745a7 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Sat, 18 Dec 2010 17:12:44 +0100
Subject: examples: socket type cleanup

---
 docs/examples/hiperfifo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'docs/examples/hiperfifo.c')

diff --git a/docs/examples/hiperfifo.c b/docs/examples/hiperfifo.c
index c9096871b..a885c0ce4 100644
--- a/docs/examples/hiperfifo.c
+++ b/docs/examples/hiperfifo.c
@@ -350,7 +350,7 @@ static int init_fifo (GlobalInfo *g)
 {
   struct stat st;
   static const char *fifo = "hiper.fifo";
-  int sockfd;
+  curl_socket_t sockfd;
 
   fprintf(MSG_OUT, "Creating named pipe \"%s\"\n", fifo);
   if (lstat (fifo, &st) == 0) {
-- 
cgit v1.2.1


From 1aeb635cdd296c16acb375a4a83a78f13166ccab Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Thu, 10 Mar 2011 11:48:02 +0100
Subject: sources: update source headers

All C and H files now (should) feature the proper project curl source
code header, which includes basic info, a copyright statement and some
basic disclaimers.
---
 docs/examples/hiperfifo.c | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

(limited to 'docs/examples/hiperfifo.c')

diff --git a/docs/examples/hiperfifo.c b/docs/examples/hiperfifo.c
index a885c0ce4..6036643b1 100644
--- a/docs/examples/hiperfifo.c
+++ b/docs/examples/hiperfifo.c
@@ -1,15 +1,28 @@
-/*****************************************************************************
+/***************************************************************************
  *                                  _   _ ____  _
  *  Project                     ___| | | |  _ \| |
  *                             / __| | | | |_) | |
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
+ * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
- * Example application source code using the multi socket interface to
- * download many files at once.
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at http://curl.haxx.se/docs/copyright.html.
  *
- * Written by Jeff Pohlmeyer
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+/* Example application source code using the multi socket interface to
+   download many files at once.
+
+Written by Jeff Pohlmeyer
 
 Requires libevent and a (POSIX?) system that has mkfifo().
 
-- 
cgit v1.2.1