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Reenable accepting connections after hitting the limit (fixes #2195)

This commit is contained in:
Stefan Bühler 2010-05-07 22:31:29 +02:00
parent 51ecc24ddb
commit b094a9ad16
2 changed files with 28 additions and 8 deletions
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13
fastcgi.c
View File

@ -690,11 +690,8 @@ static void fastcgi_server_fd_cb(struct ev_loop *loop, ev_io *w, int revents) {
/* we were stopped _after_ we had a connection */ /* we were stopped _after_ we had a connection */
return; return;
case EMFILE: case EMFILE:
if (0 == fsrv->max_connections) { fsrv->max_connections = fsrv->connections->len / 2;
fsrv->max_connections = fsrv->connections->len / 2; if (fsrv->max_connections < 1) fsrv->max_connections = 1;
} else {
fsrv->max_connections = fsrv->max_connections / 2;
}
ERROR("dropped connection limit to %u as we got EMFILE\n", fsrv->max_connections); ERROR("dropped connection limit to %u as we got EMFILE\n", fsrv->max_connections);
ev_io_rem_events(loop, w, EV_READ); ev_io_rem_events(loop, w, EV_READ);
return; return;
@ -722,6 +719,7 @@ static void fastcgi_server_fd_cb(struct ev_loop *loop, ev_io *w, int revents) {
static void fastcgi_cleanup_connections(fastcgi_server *fsrv) { static void fastcgi_cleanup_connections(fastcgi_server *fsrv) {
guint i; guint i;
gboolean closed_con;
for (i = 0; i < fsrv->connections->len; ) { for (i = 0; i < fsrv->connections->len; ) {
fastcgi_connection *fcon = g_ptr_array_index(fsrv->connections, i); fastcgi_connection *fcon = g_ptr_array_index(fsrv->connections, i);
@ -732,10 +730,15 @@ static void fastcgi_cleanup_connections(fastcgi_server *fsrv) {
g_ptr_array_set_size(fsrv->connections, l); g_ptr_array_set_size(fsrv->connections, l);
t_fcon->fcon_id = i; t_fcon->fcon_id = i;
fastcgi_connection_free(fcon); fastcgi_connection_free(fcon);
closed_con = TRUE;
} else { } else {
i++; i++;
} }
} }
if (closed_con && fsrv->connections->len < fsrv->max_connections) {
ev_io_add_events(fsrv->loop, &fsrv->fd_watcher, EV_READ);
}
} }
static void fastcgi_closing_cb(struct ev_loop *loop, ev_prepare *w, int revents) { static void fastcgi_closing_cb(struct ev_loop *loop, ev_prepare *w, int revents) {

23
fcgi-cgi.c
View File

@ -494,11 +494,11 @@ static const fastcgi_callbacks cgi_callbacks = {
/* cb_reset_connection: */ fcgi_cgi_reset_connection /* cb_reset_connection: */ fcgi_cgi_reset_connection
}; };
static fcgi_cgi_server* fcgi_cgi_server_create(struct ev_loop *loop, int fd) { static fcgi_cgi_server* fcgi_cgi_server_create(struct ev_loop *loop, int fd, guint maxconns) {
fcgi_cgi_server* srv = g_slice_new0(fcgi_cgi_server); fcgi_cgi_server* srv = g_slice_new0(fcgi_cgi_server);
srv->loop = loop; srv->loop = loop;
srv->aborted_pending_childs = g_ptr_array_new(); srv->aborted_pending_childs = g_ptr_array_new();
srv->fsrv = fastcgi_server_create(loop, fd, &cgi_callbacks, 10); srv->fsrv = fastcgi_server_create(loop, fd, &cgi_callbacks, maxconns);
srv->fsrv->data = srv; srv->fsrv->data = srv;
return srv; return srv;
} }
@ -539,6 +539,23 @@ static void sigint_cb(struct ev_loop *loop, struct ev_signal *w, int revents) {
} }
} }
typedef struct {
gint maxconns;
gboolean show_version;
} options;
static options opts = {
/* maxconns:*/ 16,
/* version: */ FALSE,
};
static const GOptionEntry entries[] = {
{ "max-connections", 'c', 0, G_OPTION_ARG_INT, &opts.maxconns, "Maximum number of connections (default 16)", "number" },
{ "version", 'v', 0, G_OPTION_ARG_NONE, &opts.show_version, "Show version", NULL },
{ NULL, 0, 0, 0, NULL, NULL, NULL }
};
int main(int argc, char **argv) { int main(int argc, char **argv) {
struct ev_loop *loop; struct ev_loop *loop;
fcgi_cgi_server* srv; fcgi_cgi_server* srv;
@ -546,7 +563,7 @@ int main(int argc, char **argv) {
UNUSED(argv); UNUSED(argv);
loop = ev_default_loop(0); loop = ev_default_loop(0);
srv = fcgi_cgi_server_create(loop, 0); srv = fcgi_cgi_server_create(loop, 0, opts.maxconns);
signal(SIGPIPE, SIG_IGN); signal(SIGPIPE, SIG_IGN);
CATCH_SIGNAL(loop, sigint_cb, INT); CATCH_SIGNAL(loop, sigint_cb, INT);