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Diffstat (limited to 'libusb/io.c')
-rw-r--r--libusb/io.c111
1 files changed, 55 insertions, 56 deletions
diff --git a/libusb/io.c b/libusb/io.c
index 1379eb3..ce661ad 100644
--- a/libusb/io.c
+++ b/libusb/io.c
@@ -21,7 +21,6 @@
#include <config.h>
#include <errno.h>
#include <poll.h>
-#include <pthread.h>
#include <signal.h>
#include <stdint.h>
#include <stdlib.h>
@@ -1005,12 +1004,12 @@ int usbi_io_init(struct libusb_context *ctx)
{
int r;
- pthread_mutex_init(&ctx->flying_transfers_lock, NULL);
- pthread_mutex_init(&ctx->pollfds_lock, NULL);
- pthread_mutex_init(&ctx->pollfd_modify_lock, NULL);
- pthread_mutex_init(&ctx->events_lock, NULL);
- pthread_mutex_init(&ctx->event_waiters_lock, NULL);
- pthread_cond_init(&ctx->event_waiters_cond, NULL);
+ usbi_mutex_init(&ctx->flying_transfers_lock, NULL);
+ usbi_mutex_init(&ctx->pollfds_lock, NULL);
+ usbi_mutex_init(&ctx->pollfd_modify_lock, NULL);
+ usbi_mutex_init(&ctx->events_lock, NULL);
+ usbi_mutex_init(&ctx->event_waiters_lock, NULL);
+ usbi_cond_init(&ctx->event_waiters_cond, NULL);
list_init(&ctx->flying_transfers);
list_init(&ctx->pollfds);
@@ -1095,7 +1094,7 @@ static int add_to_flying_list(struct usbi_transfer *transfer)
int r = 0;
int first = 1;
- pthread_mutex_lock(&ctx->flying_transfers_lock);
+ usbi_mutex_lock(&ctx->flying_transfers_lock);
/* if we have no other flying transfers, start the list with this one */
if (list_empty(&ctx->flying_transfers)) {
@@ -1129,7 +1128,7 @@ static int add_to_flying_list(struct usbi_transfer *transfer)
/* otherwise we need to be inserted at the end */
list_add_tail(&transfer->list, &ctx->flying_transfers);
out:
- pthread_mutex_unlock(&ctx->flying_transfers_lock);
+ usbi_mutex_unlock(&ctx->flying_transfers_lock);
return r;
}
@@ -1170,7 +1169,7 @@ API_EXPORTED struct libusb_transfer *libusb_alloc_transfer(int iso_packets)
memset(itransfer, 0, alloc_size);
itransfer->num_iso_packets = iso_packets;
- pthread_mutex_init(&itransfer->lock, NULL);
+ usbi_mutex_init(&itransfer->lock, NULL);
return __USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
}
@@ -1201,7 +1200,7 @@ API_EXPORTED void libusb_free_transfer(struct libusb_transfer *transfer)
free(transfer->buffer);
itransfer = __LIBUSB_TRANSFER_TO_USBI_TRANSFER(transfer);
- pthread_mutex_destroy(&itransfer->lock);
+ usbi_mutex_destroy(&itransfer->lock);
free(itransfer);
}
@@ -1223,7 +1222,7 @@ API_EXPORTED int libusb_submit_transfer(struct libusb_transfer *transfer)
int r;
int first;
- pthread_mutex_lock(&itransfer->lock);
+ usbi_mutex_lock(&itransfer->lock);
itransfer->transferred = 0;
itransfer->flags = 0;
r = calculate_timeout(itransfer);
@@ -1235,9 +1234,9 @@ API_EXPORTED int libusb_submit_transfer(struct libusb_transfer *transfer)
first = add_to_flying_list(itransfer);
r = usbi_backend->submit_transfer(itransfer);
if (r) {
- pthread_mutex_lock(&ctx->flying_transfers_lock);
+ usbi_mutex_lock(&ctx->flying_transfers_lock);
list_del(&itransfer->list);
- pthread_mutex_unlock(&ctx->flying_transfers_lock);
+ usbi_mutex_unlock(&ctx->flying_transfers_lock);
}
#ifdef USBI_TIMERFD_AVAILABLE
else if (first && usbi_using_timerfd(ctx)) {
@@ -1253,7 +1252,7 @@ API_EXPORTED int libusb_submit_transfer(struct libusb_transfer *transfer)
#endif
out:
- pthread_mutex_unlock(&itransfer->lock);
+ usbi_mutex_unlock(&itransfer->lock);
return r;
}
@@ -1278,12 +1277,12 @@ API_EXPORTED int libusb_cancel_transfer(struct libusb_transfer *transfer)
int r;
usbi_dbg("");
- pthread_mutex_lock(&itransfer->lock);
+ usbi_mutex_lock(&itransfer->lock);
r = usbi_backend->cancel_transfer(itransfer);
if (r < 0)
usbi_err(TRANSFER_CTX(transfer),
"cancel transfer failed error %d", r);
- pthread_mutex_unlock(&itransfer->lock);
+ usbi_mutex_unlock(&itransfer->lock);
return r;
}
@@ -1367,10 +1366,10 @@ int usbi_handle_transfer_completion(struct usbi_transfer *itransfer,
* to rearm the timerfd if the transfer that expired was the one with
* the shortest timeout. */
- pthread_mutex_lock(&ctx->flying_transfers_lock);
+ usbi_mutex_lock(&ctx->flying_transfers_lock);
list_del(&itransfer->list);
r = arm_timerfd_for_next_timeout(ctx);
- pthread_mutex_unlock(&ctx->flying_transfers_lock);
+ usbi_mutex_unlock(&ctx->flying_transfers_lock);
if (r < 0) {
return r;
@@ -1400,9 +1399,9 @@ int usbi_handle_transfer_completion(struct usbi_transfer *itransfer,
* this point. */
if (flags & LIBUSB_TRANSFER_FREE_TRANSFER)
libusb_free_transfer(transfer);
- pthread_mutex_lock(&ctx->event_waiters_lock);
- pthread_cond_broadcast(&ctx->event_waiters_cond);
- pthread_mutex_unlock(&ctx->event_waiters_lock);
+ usbi_mutex_lock(&ctx->event_waiters_lock);
+ usbi_cond_broadcast(&ctx->event_waiters_cond);
+ usbi_mutex_unlock(&ctx->event_waiters_lock);
return 0;
}
@@ -1450,15 +1449,15 @@ API_EXPORTED int libusb_try_lock_events(libusb_context *ctx)
/* is someone else waiting to modify poll fds? if so, don't let this thread
* start event handling */
- pthread_mutex_lock(&ctx->pollfd_modify_lock);
+ usbi_mutex_lock(&ctx->pollfd_modify_lock);
r = ctx->pollfd_modify;
- pthread_mutex_unlock(&ctx->pollfd_modify_lock);
+ usbi_mutex_unlock(&ctx->pollfd_modify_lock);
if (r) {
usbi_dbg("someone else is modifying poll fds");
return 1;
}
- r = pthread_mutex_trylock(&ctx->events_lock);
+ r = usbi_mutex_trylock(&ctx->events_lock);
if (r)
return 1;
@@ -1487,7 +1486,7 @@ API_EXPORTED int libusb_try_lock_events(libusb_context *ctx)
API_EXPORTED void libusb_lock_events(libusb_context *ctx)
{
USBI_GET_CONTEXT(ctx);
- pthread_mutex_lock(&ctx->events_lock);
+ usbi_mutex_lock(&ctx->events_lock);
ctx->event_handler_active = 1;
}
@@ -1503,14 +1502,14 @@ API_EXPORTED void libusb_unlock_events(libusb_context *ctx)
{
USBI_GET_CONTEXT(ctx);
ctx->event_handler_active = 0;
- pthread_mutex_unlock(&ctx->events_lock);
+ usbi_mutex_unlock(&ctx->events_lock);
/* FIXME: perhaps we should be a bit more efficient by not broadcasting
* the availability of the events lock when we are modifying pollfds
* (check ctx->pollfd_modify)? */
- pthread_mutex_lock(&ctx->event_waiters_lock);
- pthread_cond_broadcast(&ctx->event_waiters_cond);
- pthread_mutex_unlock(&ctx->event_waiters_lock);
+ usbi_mutex_lock(&ctx->event_waiters_lock);
+ usbi_cond_broadcast(&ctx->event_waiters_cond);
+ usbi_mutex_unlock(&ctx->event_waiters_lock);
}
/** \ingroup poll
@@ -1541,9 +1540,9 @@ API_EXPORTED int libusb_event_handling_ok(libusb_context *ctx)
/* is someone else waiting to modify poll fds? if so, don't let this thread
* continue event handling */
- pthread_mutex_lock(&ctx->pollfd_modify_lock);
+ usbi_mutex_lock(&ctx->pollfd_modify_lock);
r = ctx->pollfd_modify;
- pthread_mutex_unlock(&ctx->pollfd_modify_lock);
+ usbi_mutex_unlock(&ctx->pollfd_modify_lock);
if (r) {
usbi_dbg("someone else is modifying poll fds");
return 0;
@@ -1569,9 +1568,9 @@ API_EXPORTED int libusb_event_handler_active(libusb_context *ctx)
/* is someone else waiting to modify poll fds? if so, don't let this thread
* start event handling -- indicate that event handling is happening */
- pthread_mutex_lock(&ctx->pollfd_modify_lock);
+ usbi_mutex_lock(&ctx->pollfd_modify_lock);
r = ctx->pollfd_modify;
- pthread_mutex_unlock(&ctx->pollfd_modify_lock);
+ usbi_mutex_unlock(&ctx->pollfd_modify_lock);
if (r) {
usbi_dbg("someone else is modifying poll fds");
return 1;
@@ -1602,7 +1601,7 @@ API_EXPORTED int libusb_event_handler_active(libusb_context *ctx)
API_EXPORTED void libusb_lock_event_waiters(libusb_context *ctx)
{
USBI_GET_CONTEXT(ctx);
- pthread_mutex_lock(&ctx->event_waiters_lock);
+ usbi_mutex_lock(&ctx->event_waiters_lock);
}
/** \ingroup poll
@@ -1613,7 +1612,7 @@ API_EXPORTED void libusb_lock_event_waiters(libusb_context *ctx)
API_EXPORTED void libusb_unlock_event_waiters(libusb_context *ctx)
{
USBI_GET_CONTEXT(ctx);
- pthread_mutex_unlock(&ctx->event_waiters_lock);
+ usbi_mutex_unlock(&ctx->event_waiters_lock);
}
/** \ingroup poll
@@ -1648,7 +1647,7 @@ API_EXPORTED int libusb_wait_for_event(libusb_context *ctx, struct timeval *tv)
USBI_GET_CONTEXT(ctx);
if (tv == NULL) {
- pthread_cond_wait(&ctx->event_waiters_cond, &ctx->event_waiters_lock);
+ usbi_cond_wait(&ctx->event_waiters_cond, &ctx->event_waiters_lock);
return 0;
}
@@ -1665,7 +1664,7 @@ API_EXPORTED int libusb_wait_for_event(libusb_context *ctx, struct timeval *tv)
timeout.tv_sec++;
}
- r = pthread_cond_timedwait(&ctx->event_waiters_cond,
+ r = usbi_cond_timedwait(&ctx->event_waiters_cond,
&ctx->event_waiters_lock, &timeout);
return (r == ETIMEDOUT);
}
@@ -1739,9 +1738,9 @@ static int handle_timeouts(struct libusb_context *ctx)
{
int r;
USBI_GET_CONTEXT(ctx);
- pthread_mutex_lock(&ctx->flying_transfers_lock);
+ usbi_mutex_lock(&ctx->flying_transfers_lock);
r = handle_timeouts_locked(ctx);
- pthread_mutex_unlock(&ctx->flying_transfers_lock);
+ usbi_mutex_unlock(&ctx->flying_transfers_lock);
return r;
}
#endif
@@ -1755,7 +1754,7 @@ static int handle_timerfd_trigger(struct libusb_context *ctx)
if (r < 0)
return r;
- pthread_mutex_lock(&ctx->flying_transfers_lock);
+ usbi_mutex_lock(&ctx->flying_transfers_lock);
/* process the timeout that just happened */
r = handle_timeouts_locked(ctx);
@@ -1766,7 +1765,7 @@ static int handle_timerfd_trigger(struct libusb_context *ctx)
r = arm_timerfd_for_next_timeout(ctx);
out:
- pthread_mutex_unlock(&ctx->flying_transfers_lock);
+ usbi_mutex_unlock(&ctx->flying_transfers_lock);
return r;
}
#endif
@@ -1782,7 +1781,7 @@ static int handle_events(struct libusb_context *ctx, struct timeval *tv)
int i = -1;
int timeout_ms;
- pthread_mutex_lock(&ctx->pollfds_lock);
+ usbi_mutex_lock(&ctx->pollfds_lock);
list_for_each_entry(ipollfd, &ctx->pollfds, list)
nfds++;
@@ -1799,7 +1798,7 @@ static int handle_events(struct libusb_context *ctx, struct timeval *tv)
fds[i].events = pollfd->events;
fds[i].revents = 0;
}
- pthread_mutex_unlock(&ctx->pollfds_lock);
+ usbi_mutex_unlock(&ctx->pollfds_lock);
timeout_ms = (tv->tv_sec * 1000) + (tv->tv_usec / 1000);
@@ -2097,9 +2096,9 @@ API_EXPORTED int libusb_get_next_timeout(libusb_context *ctx,
if (usbi_using_timerfd(ctx))
return 0;
- pthread_mutex_lock(&ctx->flying_transfers_lock);
+ usbi_mutex_lock(&ctx->flying_transfers_lock);
if (list_empty(&ctx->flying_transfers)) {
- pthread_mutex_unlock(&ctx->flying_transfers_lock);
+ usbi_mutex_unlock(&ctx->flying_transfers_lock);
usbi_dbg("no URBs, no timeout!");
return 0;
}
@@ -2111,7 +2110,7 @@ API_EXPORTED int libusb_get_next_timeout(libusb_context *ctx,
break;
}
}
- pthread_mutex_unlock(&ctx->flying_transfers_lock);
+ usbi_mutex_unlock(&ctx->flying_transfers_lock);
if (!found) {
usbi_dbg("all URBs have already been processed for timeouts");
@@ -2190,9 +2189,9 @@ int usbi_add_pollfd(struct libusb_context *ctx, int fd, short events)
usbi_dbg("add fd %d events %d", fd, events);
ipollfd->pollfd.fd = fd;
ipollfd->pollfd.events = events;
- pthread_mutex_lock(&ctx->pollfds_lock);
+ usbi_mutex_lock(&ctx->pollfds_lock);
list_add_tail(&ipollfd->list, &ctx->pollfds);
- pthread_mutex_unlock(&ctx->pollfds_lock);
+ usbi_mutex_unlock(&ctx->pollfds_lock);
if (ctx->fd_added_cb)
ctx->fd_added_cb(fd, events, ctx->fd_cb_user_data);
@@ -2206,7 +2205,7 @@ void usbi_remove_pollfd(struct libusb_context *ctx, int fd)
int found = 0;
usbi_dbg("remove fd %d", fd);
- pthread_mutex_lock(&ctx->pollfds_lock);
+ usbi_mutex_lock(&ctx->pollfds_lock);
list_for_each_entry(ipollfd, &ctx->pollfds, list)
if (ipollfd->pollfd.fd == fd) {
found = 1;
@@ -2215,12 +2214,12 @@ void usbi_remove_pollfd(struct libusb_context *ctx, int fd)
if (!found) {
usbi_dbg("couldn't find fd %d to remove", fd);
- pthread_mutex_unlock(&ctx->pollfds_lock);
+ usbi_mutex_unlock(&ctx->pollfds_lock);
return;
}
list_del(&ipollfd->list);
- pthread_mutex_unlock(&ctx->pollfds_lock);
+ usbi_mutex_unlock(&ctx->pollfds_lock);
free(ipollfd);
if (ctx->fd_removed_cb)
ctx->fd_removed_cb(fd, ctx->fd_cb_user_data);
@@ -2246,7 +2245,7 @@ API_EXPORTED const struct libusb_pollfd **libusb_get_pollfds(
size_t cnt = 0;
USBI_GET_CONTEXT(ctx);
- pthread_mutex_lock(&ctx->pollfds_lock);
+ usbi_mutex_lock(&ctx->pollfds_lock);
list_for_each_entry(ipollfd, &ctx->pollfds, list)
cnt++;
@@ -2259,7 +2258,7 @@ API_EXPORTED const struct libusb_pollfd **libusb_get_pollfds(
ret[cnt] = NULL;
out:
- pthread_mutex_unlock(&ctx->pollfds_lock);
+ usbi_mutex_unlock(&ctx->pollfds_lock);
return (const struct libusb_pollfd **) ret;
}
@@ -2288,14 +2287,14 @@ void usbi_handle_disconnect(struct libusb_device_handle *handle)
*/
while (1) {
- pthread_mutex_lock(&HANDLE_CTX(handle)->flying_transfers_lock);
+ usbi_mutex_lock(&HANDLE_CTX(handle)->flying_transfers_lock);
to_cancel = NULL;
list_for_each_entry(cur, &HANDLE_CTX(handle)->flying_transfers, list)
if (__USBI_TRANSFER_TO_LIBUSB_TRANSFER(cur)->dev_handle == handle) {
to_cancel = cur;
break;
}
- pthread_mutex_unlock(&HANDLE_CTX(handle)->flying_transfers_lock);
+ usbi_mutex_unlock(&HANDLE_CTX(handle)->flying_transfers_lock);
if (!to_cancel)
break;