'coroutine' library separated from 'baselib'

6 files changed, 169 insertions, 153 deletions

diff --git a/lbaselib.c b/lbaselib.c
index d9669dfc..d28708af 100644
--- a/lbaselib.c
+++ b/lbaselib.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lbaselib.c,v 1.242 2010/04/19 16:36:06 roberto Exp roberto $
+** $Id: lbaselib.c,v 1.243 2010/04/19 17:02:02 roberto Exp roberto $
 ** Basic library
 ** See Copyright Notice in lua.h
 */
@@ -500,144 +500,7 @@ static const luaL_Reg base_funcs[] = {
 };
 
 
-/*
-** {======================================================
-** Coroutine library
-** =======================================================
-*/
-
-static int auxresume (lua_State *L, lua_State *co, int narg) {
-  int status;
-  if (!lua_checkstack(co, narg)) {
-    lua_pushliteral(L, "too many arguments to resume");
-    return -1;  /* error flag */
-  }
-  if (lua_status(co) == LUA_OK && lua_gettop(co) == 0) {
-    lua_pushliteral(L, "cannot resume dead coroutine");
-    return -1;  /* error flag */
-  }
-  lua_xmove(L, co, narg);
-  status = lua_resume(co, narg);
-  if (status == LUA_OK || status == LUA_YIELD) {
-    int nres = lua_gettop(co);
-    if (!lua_checkstack(L, nres + 1)) {
-      lua_pop(co, nres);  /* remove results anyway */
-      lua_pushliteral(L, "too many results to resume");
-      return -1;  /* error flag */
-    }
-    lua_xmove(co, L, nres);  /* move yielded values */
-    return nres;
-  }
-  else {
-    lua_xmove(co, L, 1);  /* move error message */
-    return -1;  /* error flag */
-  }
-}
-
-
-static int luaB_coresume (lua_State *L) {
-  lua_State *co = lua_tothread(L, 1);
-  int r;
-  luaL_argcheck(L, co, 1, "coroutine expected");
-  r = auxresume(L, co, lua_gettop(L) - 1);
-  if (r < 0) {
-    lua_pushboolean(L, 0);
-    lua_insert(L, -2);
-    return 2;  /* return false + error message */
-  }
-  else {
-    lua_pushboolean(L, 1);
-    lua_insert(L, -(r + 1));
-    return r + 1;  /* return true + `resume' returns */
-  }
-}
-
-
-static int luaB_auxwrap (lua_State *L) {
-  lua_State *co = lua_tothread(L, lua_upvalueindex(1));
-  int r = auxresume(L, co, lua_gettop(L));
-  if (r < 0) {
-    if (lua_isstring(L, -1)) {  /* error object is a string? */
-      luaL_where(L, 1);  /* add extra info */
-      lua_insert(L, -2);
-      lua_concat(L, 2);
-    }
-    lua_error(L);  /* propagate error */
-  }
-  return r;
-}
-
-
-static int luaB_cocreate (lua_State *L) {
-  lua_State *NL = lua_newthread(L);
-  luaL_checktype(L, 1, LUA_TFUNCTION);
-  lua_pushvalue(L, 1);  /* move function to top */
-  lua_xmove(L, NL, 1);  /* move function from L to NL */
-  return 1;
-}
-
-
-static int luaB_cowrap (lua_State *L) {
-  luaB_cocreate(L);
-  lua_pushcclosure(L, luaB_auxwrap, 1);
-  return 1;
-}
-
-
-static int luaB_yield (lua_State *L) {
-  return lua_yield(L, lua_gettop(L));
-}
-
-
-static int luaB_costatus (lua_State *L) {
-  lua_State *co = lua_tothread(L, 1);
-  luaL_argcheck(L, co, 1, "coroutine expected");
-  if (L == co) lua_pushliteral(L, "running");
-  else {
-    switch (lua_status(co)) {
-      case LUA_YIELD:
-        lua_pushliteral(L, "suspended");
-        break;
-      case LUA_OK: {
-        lua_Debug ar;
-        if (lua_getstack(co, 0, &ar) > 0)  /* does it have frames? */
-          lua_pushliteral(L, "normal");  /* it is running */
-        else if (lua_gettop(co) == 0)
-            lua_pushliteral(L, "dead");
-        else
-          lua_pushliteral(L, "suspended");  /* initial state */
-        break;
-      }
-      default:  /* some error occurred */
-        lua_pushliteral(L, "dead");
-        break;
-    }
-  }
-  return 1;
-}
-
-
-static int luaB_corunning (lua_State *L) {
-  int ismain = lua_pushthread(L);
-  lua_pushboolean(L, ismain);
-  return 2;
-}
-
-
-static const luaL_Reg co_funcs[] = {
-  {"create", luaB_cocreate},
-  {"resume", luaB_coresume},
-  {"running", luaB_corunning},
-  {"status", luaB_costatus},
-  {"wrap", luaB_cowrap},
-  {"yield", luaB_yield},
-  {NULL, NULL}
-};
-
-/* }====================================================== */
-
-
-static void base_open (lua_State *L) {
+LUAMOD_API int luaopen_base (lua_State *L) {
   /* set global _G */
   lua_pushglobaltable(L);
   lua_pushglobaltable(L);
@@ -654,12 +517,6 @@ static void base_open (lua_State *L) {
   lua_setfield(L, -2, "__mode");  /* metatable(w).__mode = "kv" */
   lua_pushcclosure(L, luaB_newproxy, 1);
   lua_setfield(L, -2, "newproxy");  /* set global `newproxy' */
-}
-
-
-LUAMOD_API int luaopen_base (lua_State *L) {
-  base_open(L);
-  luaL_register(L, LUA_COLIBNAME, co_funcs);
-  return 2;
+  return 1;
 }
 
diff --git a/lcorolib.c b/lcorolib.c
new file mode 100644
index 00000000..fdcbc6de
--- /dev/null
+++ b/lcorolib.c
@@ -0,0 +1,154 @@
+/*
+** $Id: lcorolib.c,v $
+** Coroutine Library
+** See Copyright Notice in lua.h
+*/
+
+
+#include <stdlib.h>
+
+
+#define lcorolib_c
+#define LUA_LIB
+
+#include "lua.h"
+
+#include "lauxlib.h"
+#include "lualib.h"
+
+
+static int auxresume (lua_State *L, lua_State *co, int narg) {
+  int status;
+  if (!lua_checkstack(co, narg)) {
+    lua_pushliteral(L, "too many arguments to resume");
+    return -1;  /* error flag */
+  }
+  if (lua_status(co) == LUA_OK && lua_gettop(co) == 0) {
+    lua_pushliteral(L, "cannot resume dead coroutine");
+    return -1;  /* error flag */
+  }
+  lua_xmove(L, co, narg);
+  status = lua_resume(co, narg);
+  if (status == LUA_OK || status == LUA_YIELD) {
+    int nres = lua_gettop(co);
+    if (!lua_checkstack(L, nres + 1)) {
+      lua_pop(co, nres);  /* remove results anyway */
+      lua_pushliteral(L, "too many results to resume");
+      return -1;  /* error flag */
+    }
+    lua_xmove(co, L, nres);  /* move yielded values */
+    return nres;
+  }
+  else {
+    lua_xmove(co, L, 1);  /* move error message */
+    return -1;  /* error flag */
+  }
+}
+
+
+static int luaB_coresume (lua_State *L) {
+  lua_State *co = lua_tothread(L, 1);
+  int r;
+  luaL_argcheck(L, co, 1, "coroutine expected");
+  r = auxresume(L, co, lua_gettop(L) - 1);
+  if (r < 0) {
+    lua_pushboolean(L, 0);
+    lua_insert(L, -2);
+    return 2;  /* return false + error message */
+  }
+  else {
+    lua_pushboolean(L, 1);
+    lua_insert(L, -(r + 1));
+    return r + 1;  /* return true + `resume' returns */
+  }
+}
+
+
+static int luaB_auxwrap (lua_State *L) {
+  lua_State *co = lua_tothread(L, lua_upvalueindex(1));
+  int r = auxresume(L, co, lua_gettop(L));
+  if (r < 0) {
+    if (lua_isstring(L, -1)) {  /* error object is a string? */
+      luaL_where(L, 1);  /* add extra info */
+      lua_insert(L, -2);
+      lua_concat(L, 2);
+    }
+    lua_error(L);  /* propagate error */
+  }
+  return r;
+}
+
+
+static int luaB_cocreate (lua_State *L) {
+  lua_State *NL = lua_newthread(L);
+  luaL_checktype(L, 1, LUA_TFUNCTION);
+  lua_pushvalue(L, 1);  /* move function to top */
+  lua_xmove(L, NL, 1);  /* move function from L to NL */
+  return 1;
+}
+
+
+static int luaB_cowrap (lua_State *L) {
+  luaB_cocreate(L);
+  lua_pushcclosure(L, luaB_auxwrap, 1);
+  return 1;
+}
+
+
+static int luaB_yield (lua_State *L) {
+  return lua_yield(L, lua_gettop(L));
+}
+
+
+static int luaB_costatus (lua_State *L) {
+  lua_State *co = lua_tothread(L, 1);
+  luaL_argcheck(L, co, 1, "coroutine expected");
+  if (L == co) lua_pushliteral(L, "running");
+  else {
+    switch (lua_status(co)) {
+      case LUA_YIELD:
+        lua_pushliteral(L, "suspended");
+        break;
+      case LUA_OK: {
+        lua_Debug ar;
+        if (lua_getstack(co, 0, &ar) > 0)  /* does it have frames? */
+          lua_pushliteral(L, "normal");  /* it is running */
+        else if (lua_gettop(co) == 0)
+            lua_pushliteral(L, "dead");
+        else
+          lua_pushliteral(L, "suspended");  /* initial state */
+        break;
+      }
+      default:  /* some error occurred */
+        lua_pushliteral(L, "dead");
+        break;
+    }
+  }
+  return 1;
+}
+
+
+static int luaB_corunning (lua_State *L) {
+  int ismain = lua_pushthread(L);
+  lua_pushboolean(L, ismain);
+  return 2;
+}
+
+
+static const luaL_Reg co_funcs[] = {
+  {"create", luaB_cocreate},
+  {"resume", luaB_coresume},
+  {"running", luaB_corunning},
+  {"status", luaB_costatus},
+  {"wrap", luaB_cowrap},
+  {"yield", luaB_yield},
+  {NULL, NULL}
+};
+
+
+
+LUAMOD_API int luaopen_coroutine (lua_State *L) {
+  luaL_register(L, LUA_COLIBNAME, co_funcs);
+  return 1;
+}
+
diff --git a/linit.c b/linit.c
index 2e9fb0b9..99c33e92 100644
--- a/linit.c
+++ b/linit.c
@@ -1,5 +1,5 @@
 /*
-** $Id: linit.c,v 1.24 2010/03/26 20:58:11 roberto Exp roberto $
+** $Id: linit.c,v 1.25 2010/05/20 12:57:59 roberto Exp roberto $
 ** Initialization of libraries for lua.c and other clients        
 ** See Copyright Notice in lua.h
 */
@@ -29,6 +29,7 @@
 static const luaL_Reg loadedlibs[] = {
   {"_G", luaopen_base},
   {LUA_LOADLIBNAME, luaopen_package},
+  {LUA_COLIBNAME, luaopen_coroutine},
   {LUA_TABLIBNAME, luaopen_table},
   {LUA_IOLIBNAME, luaopen_io},
   {LUA_OSLIBNAME, luaopen_os},
diff --git a/ltests.c b/ltests.c
index 4b60bd2a..2b38b5e0 100644
--- a/ltests.c
+++ b/ltests.c
@@ -1,5 +1,5 @@
 /*
-** $Id: ltests.c,v 2.107 2010/05/14 13:15:54 roberto Exp roberto $
+** $Id: ltests.c,v 2.108 2010/05/17 20:10:17 roberto Exp roberto $
 ** Internal Module for Debugging of the Lua Implementation
 ** See Copyright Notice in lua.h
 */
@@ -842,6 +842,7 @@ static lua_State *getstate (lua_State *L) {
 static int loadlib (lua_State *L) {
   static const luaL_Reg libs[] = {
     {"baselibopen", luaopen_base},
+    {"corolibopen", luaopen_coroutine},
     {"dblibopen", luaopen_debug},
     {"iolibopen", luaopen_io},
     {"mathlibopen", luaopen_math},
diff --git a/lualib.h b/lualib.h
index 178083c5..5c5d0a9c 100644
--- a/lualib.h
+++ b/lualib.h
@@ -1,5 +1,5 @@
 /*
-** $Id: lualib.h,v 1.38 2009/07/01 16:16:40 roberto Exp roberto $
+** $Id: lualib.h,v 1.39 2009/11/24 12:05:44 roberto Exp roberto $
 ** Lua standard libraries
 ** See Copyright Notice in lua.h
 */
@@ -15,9 +15,11 @@
 #define LUA_FILEHANDLE		"FILE*"
 
 
-#define LUA_COLIBNAME	"coroutine"
 LUAMOD_API int (luaopen_base) (lua_State *L);
 
+#define LUA_COLIBNAME	"coroutine"
+LUAMOD_API int (luaopen_coroutine) (lua_State *L);
+
 #define LUA_TABLIBNAME	"table"
 LUAMOD_API int (luaopen_table) (lua_State *L);
 
diff --git a/makefile b/makefile
index 00fe2b2e..1e6dcb0e 100644
--- a/makefile
+++ b/makefile
@@ -67,7 +67,7 @@ CORE_O=	lapi.o lcode.o lctype.o ldebug.o ldo.o ldump.o lfunc.o lgc.o llex.o \
 	ltm.o lundump.o lvm.o lzio.o ltests.o
 AUX_O=	lauxlib.o
 LIB_O=	lbaselib.o ldblib.o liolib.o lmathlib.o loslib.o ltablib.o lstrlib.o \
-	lbitlib.o loadlib.o linit.o
+	lbitlib.o loadlib.o lcorolib.o linit.o
 
 LUA_T=	lua
 LUA_O=	lua.o
@@ -126,6 +126,7 @@ lbitlib.o: lbitlib.c lua.h luaconf.h lauxlib.h lualib.h
 lcode.o: lcode.c lua.h luaconf.h lcode.h llex.h lobject.h llimits.h \
  lzio.h lmem.h lopcodes.h lparser.h ldebug.h lstate.h ltm.h ldo.h lgc.h \
  lstring.h ltable.h
+lcorolib.o: lcorolib.c lua.h luaconf.h lauxlib.h lualib.h
 lctype.o: lctype.c lctype.h lua.h luaconf.h llimits.h
 ldblib.o: ldblib.c lua.h luaconf.h lauxlib.h lualib.h
 ldebug.o: ldebug.c lua.h luaconf.h lapi.h llimits.h lstate.h lobject.h \
@@ -136,8 +137,8 @@ ldo.o: ldo.c lua.h luaconf.h lapi.h llimits.h lstate.h lobject.h ltm.h \
  lstring.h ltable.h lundump.h lvm.h
 ldump.o: ldump.c lua.h luaconf.h lobject.h llimits.h lstate.h ltm.h \
  lzio.h lmem.h lundump.h
-lfunc.o: lfunc.c lua.h luaconf.h lfunc.h lobject.h llimits.h lgc.h lmem.h \
- lopcodes.h lstate.h ltm.h lzio.h
+lfunc.o: lfunc.c lua.h luaconf.h lfunc.h lobject.h llimits.h lgc.h \
+ lstate.h ltm.h lzio.h lmem.h
 lgc.o: lgc.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h ltm.h \
  lzio.h lmem.h ldo.h lfunc.h lgc.h lstring.h ltable.h
 linit.o: linit.c lua.h luaconf.h lualib.h lauxlib.h