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-rw-r--r--src/core/iomgr/pollset_windows.c258
1 files changed, 3 insertions, 255 deletions
diff --git a/src/core/iomgr/pollset_windows.c b/src/core/iomgr/pollset_windows.c
index 2555322532..c913c21461 100644
--- a/src/core/iomgr/pollset_windows.c
+++ b/src/core/iomgr/pollset_windows.c
@@ -31,260 +31,8 @@
*
*/
-#include "src/core/iomgr/pollset_posix.h"
+#include <grpc/support/port_platform.h>
-#include <errno.h>
-#include <poll.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
+#ifdef GPR_WIN32
-#include "src/core/iomgr/alarm_internal.h"
-#include "src/core/iomgr/fd_posix.h"
-#include "src/core/iomgr/iomgr_internal.h"
-#include "src/core/iomgr/socket_utils_posix.h"
-#include <grpc/support/alloc.h>
-#include <grpc/support/log.h>
-#include <grpc/support/thd.h>
-#include <grpc/support/useful.h>
-
-static grpc_pollset g_backup_pollset;
-static int g_shutdown_backup_poller;
-static gpr_event g_backup_poller_done;
-
-static void backup_poller(void *p) {
- gpr_timespec delta = gpr_time_from_millis(100);
- gpr_timespec last_poll = gpr_now();
-
- gpr_mu_lock(&g_backup_pollset.mu);
- while (g_shutdown_backup_poller == 0) {
- gpr_timespec next_poll = gpr_time_add(last_poll, delta);
- grpc_pollset_work(&g_backup_pollset, next_poll);
- gpr_mu_unlock(&g_backup_pollset.mu);
- gpr_sleep_until(next_poll);
- gpr_mu_lock(&g_backup_pollset.mu);
- last_poll = next_poll;
- }
- gpr_mu_unlock(&g_backup_pollset.mu);
-
- gpr_event_set(&g_backup_poller_done, (void *)1);
-}
-
-void grpc_pollset_kick(grpc_pollset *p) {
- if (!p->counter) return;
- grpc_pollset_kick_kick(&p->kick_state);
-}
-
-void grpc_pollset_force_kick(grpc_pollset *p) { grpc_pollset_kick(p); }
-
-/* global state management */
-
-grpc_pollset *grpc_backup_pollset(void) { return &g_backup_pollset; }
-
-void grpc_pollset_global_init(void) {
- gpr_thd_id id;
-
- /* Initialize kick fd state */
- grpc_pollset_kick_global_init();
-
- /* initialize the backup pollset */
- grpc_pollset_init(&g_backup_pollset);
-
- /* start the backup poller thread */
- g_shutdown_backup_poller = 0;
- gpr_event_init(&g_backup_poller_done);
- gpr_thd_new(&id, backup_poller, NULL, NULL);
-}
-
-void grpc_pollset_global_shutdown(void) {
- /* terminate the backup poller thread */
- gpr_mu_lock(&g_backup_pollset.mu);
- g_shutdown_backup_poller = 1;
- gpr_mu_unlock(&g_backup_pollset.mu);
- gpr_event_wait(&g_backup_poller_done, gpr_inf_future);
-
- /* destroy the backup pollset */
- grpc_pollset_destroy(&g_backup_pollset);
-
- /* destroy the kick pipes */
- grpc_pollset_kick_global_destroy();
-}
-
-/* main interface */
-
-static void become_empty_pollset(grpc_pollset *pollset);
-static void become_unary_pollset(grpc_pollset *pollset, grpc_fd *fd);
-
-void grpc_pollset_init(grpc_pollset *pollset) {
- gpr_mu_init(&pollset->mu);
- gpr_cv_init(&pollset->cv);
- grpc_pollset_kick_init(&pollset->kick_state);
- become_empty_pollset(pollset);
-}
-
-void grpc_pollset_add_fd(grpc_pollset *pollset, grpc_fd *fd) {
- gpr_mu_lock(&pollset->mu);
- pollset->vtable->add_fd(pollset, fd);
- gpr_cv_broadcast(&pollset->cv);
- gpr_mu_unlock(&pollset->mu);
-}
-
-void grpc_pollset_del_fd(grpc_pollset *pollset, grpc_fd *fd) {
- gpr_mu_lock(&pollset->mu);
- pollset->vtable->del_fd(pollset, fd);
- gpr_cv_broadcast(&pollset->cv);
- gpr_mu_unlock(&pollset->mu);
-}
-
-int grpc_pollset_work(grpc_pollset *pollset, gpr_timespec deadline) {
- /* pollset->mu already held */
- gpr_timespec now;
- now = gpr_now();
- if (gpr_time_cmp(now, deadline) > 0) {
- return 0;
- }
- if (grpc_maybe_call_delayed_callbacks(&pollset->mu, 1)) {
- return 1;
- }
- if (grpc_alarm_check(&pollset->mu, now, &deadline)) {
- return 1;
- }
- return pollset->vtable->maybe_work(pollset, deadline, now, 1);
-}
-
-void grpc_pollset_destroy(grpc_pollset *pollset) {
- pollset->vtable->destroy(pollset);
- grpc_pollset_kick_destroy(&pollset->kick_state);
- gpr_mu_destroy(&pollset->mu);
- gpr_cv_destroy(&pollset->cv);
-}
-
-/*
- * empty_pollset - a vtable that provides polling for NO file descriptors
- */
-
-static void empty_pollset_add_fd(grpc_pollset *pollset, grpc_fd *fd) {
- become_unary_pollset(pollset, fd);
-}
-
-static void empty_pollset_del_fd(grpc_pollset *pollset, grpc_fd *fd) {}
-
-static int empty_pollset_maybe_work(grpc_pollset *pollset,
- gpr_timespec deadline, gpr_timespec now,
- int allow_synchronous_callback) {
- return 0;
-}
-
-static void empty_pollset_destroy(grpc_pollset *pollset) {}
-
-static const grpc_pollset_vtable empty_pollset = {
- empty_pollset_add_fd, empty_pollset_del_fd, empty_pollset_maybe_work,
- empty_pollset_destroy};
-
-static void become_empty_pollset(grpc_pollset *pollset) {
- pollset->vtable = &empty_pollset;
-}
-
-/*
- * unary_poll_pollset - a vtable that provides polling for one file descriptor
- * via poll()
- */
-
-static void unary_poll_pollset_add_fd(grpc_pollset *pollset, grpc_fd *fd) {
- grpc_fd *fds[2];
- if (fd == pollset->data.ptr) return;
- fds[0] = pollset->data.ptr;
- fds[1] = fd;
- grpc_platform_become_multipoller(pollset, fds, GPR_ARRAY_SIZE(fds));
- grpc_fd_unref(fds[0]);
-}
-
-static void unary_poll_pollset_del_fd(grpc_pollset *pollset, grpc_fd *fd) {
- if (fd == pollset->data.ptr) {
- grpc_fd_unref(pollset->data.ptr);
- become_empty_pollset(pollset);
- }
-}
-
-static int unary_poll_pollset_maybe_work(grpc_pollset *pollset,
- gpr_timespec deadline,
- gpr_timespec now,
- int allow_synchronous_callback) {
- struct pollfd pfd[2];
- grpc_fd *fd;
- int timeout;
- int r;
-
- if (pollset->counter) {
- return 0;
- }
- fd = pollset->data.ptr;
- if (grpc_fd_is_orphaned(fd)) {
- grpc_fd_unref(fd);
- become_empty_pollset(pollset);
- return 0;
- }
- if (gpr_time_cmp(deadline, gpr_inf_future) == 0) {
- timeout = -1;
- } else {
- timeout = gpr_time_to_millis(gpr_time_sub(deadline, now));
- if (timeout <= 0) {
- return 1;
- }
- }
- pfd[0].fd = grpc_pollset_kick_pre_poll(&pollset->kick_state);
- if (pfd[0].fd < 0) {
- /* Already kicked */
- return 1;
- }
- pfd[0].events = POLLIN;
- pfd[0].revents = 0;
- pfd[1].fd = fd->fd;
- pfd[1].events = grpc_fd_begin_poll(fd, pollset, POLLIN, POLLOUT);
- pfd[1].revents = 0;
- pollset->counter = 1;
- gpr_mu_unlock(&pollset->mu);
-
- r = poll(pfd, GPR_ARRAY_SIZE(pfd), timeout);
- if (r < 0) {
- if (errno != EINTR) {
- gpr_log(GPR_ERROR, "poll() failed: %s", strerror(errno));
- }
- } else if (r == 0) {
- /* do nothing */
- } else {
- if (pfd[0].revents & POLLIN) {
- grpc_pollset_kick_consume(&pollset->kick_state);
- }
- if (pfd[1].revents & POLLIN) {
- grpc_fd_become_readable(fd, allow_synchronous_callback);
- }
- if (pfd[1].revents & POLLOUT) {
- grpc_fd_become_writable(fd, allow_synchronous_callback);
- }
- }
-
- grpc_pollset_kick_post_poll(&pollset->kick_state);
-
- gpr_mu_lock(&pollset->mu);
- grpc_fd_end_poll(fd, pollset);
- pollset->counter = 0;
- gpr_cv_broadcast(&pollset->cv);
- return 1;
-}
-
-static void unary_poll_pollset_destroy(grpc_pollset *pollset) {
- GPR_ASSERT(pollset->counter == 0);
- grpc_fd_unref(pollset->data.ptr);
-}
-
-static const grpc_pollset_vtable unary_poll_pollset = {
- unary_poll_pollset_add_fd, unary_poll_pollset_del_fd,
- unary_poll_pollset_maybe_work, unary_poll_pollset_destroy};
-
-static void become_unary_pollset(grpc_pollset *pollset, grpc_fd *fd) {
- pollset->vtable = &unary_poll_pollset;
- pollset->counter = 0;
- pollset->data.ptr = fd;
- grpc_fd_ref(fd);
-}
+#endif /* GPR_WIN32 */ \ No newline at end of file
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