#include <pwd.h>
#include <grp.h>
+#ifdef LWS_WITH_PLUGINS
+#include <dlfcn.h>
+#endif
+#include <dirent.h>
+
+
/*
* included from libwebsockets.c for unix builds
*/
return ((unsigned long long)tv.tv_sec * 1000000LL) + tv.tv_usec;
}
-LWS_VISIBLE int lws_get_random(struct lws_context *context,
- void *buf, int len)
+LWS_VISIBLE int
+lws_get_random(struct lws_context *context, void *buf, int len)
{
return read(context->fd_random, (char *)buf, len);
}
-LWS_VISIBLE int lws_send_pipe_choked(struct lws *wsi)
+LWS_VISIBLE int
+lws_send_pipe_choked(struct lws *wsi)
{
struct lws_pollfd fds;
/* treat the fact we got a truncated send pending as if we're choked */
- if (wsi->truncated_send_len)
+ if (wsi->trunc_len)
return 1;
- fds.fd = wsi->sock;
+ fds.fd = wsi->desc.sockfd;
fds.events = POLLOUT;
fds.revents = 0;
return poll(fd, 1, 0);
}
-/*
- * This is just used to interrupt poll waiting
- * we don't have to do anything with it.
- */
-static void lws_sigusr2(int sig)
+LWS_VISIBLE void
+lws_cancel_service_pt(struct lws *wsi)
{
+ struct lws_context_per_thread *pt = &wsi->context->pt[(int)wsi->tsi];
+ char buf = 0;
+
+ if (write(pt->dummy_pipe_fds[1], &buf, sizeof(buf)) != 1)
+ lwsl_err("Cannot write to dummy pipe");
}
-/**
- * lws_cancel_service() - Cancel servicing of pending websocket activity
- * @context: Websocket context
- *
- * This function let a call to lws_service() waiting for a timeout
- * immediately return.
- */
LWS_VISIBLE void
lws_cancel_service(struct lws_context *context)
{
- char buf = 0;
+ struct lws_context_per_thread *pt = &context->pt[0];
+ char buf = 0, m = context->count_threads;
- if (write(context->dummy_pipe_fds[1], &buf, sizeof(buf)) != 1)
- lwsl_err("Cannot write to dummy pipe");
+ while (m--) {
+ if (write(pt->dummy_pipe_fds[1], &buf, sizeof(buf)) != 1)
+ lwsl_err("Cannot write to dummy pipe");
+ pt++;
+ }
}
LWS_VISIBLE void lwsl_emit_syslog(int level, const char *line)
syslog(syslog_level, "%s", line);
}
-LWS_VISIBLE int
-lws_plat_service(struct lws_context *context, int timeout_ms)
+LWS_VISIBLE LWS_EXTERN int
+_lws_plat_service_tsi(struct lws_context *context, int timeout_ms, int tsi)
{
- int n;
- int m;
+ struct lws_context_per_thread *pt;
+ int n = -1, m, c;
char buf;
-#ifdef LWS_OPENSSL_SUPPORT
- struct lws *wsi, *wsi_next;
-#endif
/* stay dead once we are dead */
- if (!context)
+ if (!context || !context->vhost_list)
return 1;
- lws_libev_run(context);
+ pt = &context->pt[tsi];
- context->service_tid = context->protocols[0].callback(context, NULL,
- LWS_CALLBACK_GET_THREAD_ID, NULL, NULL, 0);
+ lws_stats_atomic_bump(context, pt, LWSSTATS_C_SERVICE_ENTRY, 1);
-#ifdef LWS_OPENSSL_SUPPORT
- /* if we know we have non-network pending data, do not wait in poll */
- if (lws_ssl_anybody_has_buffered_read(context))
- timeout_ms = 0;
-#endif
- n = poll(context->fds, context->fds_count, timeout_ms);
- context->service_tid = 0;
+ if (timeout_ms < 0)
+ goto faked_service;
-#ifdef LWS_OPENSSL_SUPPORT
- if (!lws_ssl_anybody_has_buffered_read(context) && n == 0) {
-#else
- if (n == 0) /* poll timeout */ {
-#endif
- lws_service_fd(context, NULL);
- return 0;
- }
+ lws_libev_run(context, tsi);
+ lws_libuv_run(context, tsi);
+ lws_libevent_run(context, tsi);
- if (n < 0) {
- if (LWS_ERRNO != LWS_EINTR)
- return -1;
- return 0;
+ if (!context->service_tid_detected) {
+ struct lws _lws;
+
+ memset(&_lws, 0, sizeof(_lws));
+ _lws.context = context;
+
+ context->service_tid_detected =
+ context->vhost_list->protocols[0].callback(
+ &_lws, LWS_CALLBACK_GET_THREAD_ID, NULL, NULL, 0);
}
+ context->service_tid = context->service_tid_detected;
-#ifdef LWS_OPENSSL_SUPPORT
/*
- * For all guys with buffered SSL read data already saved up, if they
- * are not flowcontrolled, fake their POLLIN status so they'll get
- * service to use up the buffered incoming data, even though their
- * network socket may have nothing
+ * is there anybody with pending stuff that needs service forcing?
*/
-
- wsi = context->pending_read_list;
- while (wsi) {
- wsi_next = wsi->pending_read_list_next;
- context->fds[wsi->position_in_fds_table].revents |=
- context->fds[wsi->position_in_fds_table].events & POLLIN;
- if (context->fds[wsi->position_in_fds_table].revents & POLLIN) {
- /*
- * he's going to get serviced now, take him off the
- * list of guys with buffered SSL. If he still has some
- * at the end of the service, he'll get put back on the
- * list then.
- */
- lws_ssl_remove_wsi_from_buffered_list(context, wsi);
- }
- wsi = wsi_next;
+ if (!lws_service_adjust_timeout(context, 1, tsi)) {
+ /* -1 timeout means just do forced service */
+ _lws_plat_service_tsi(context, -1, pt->tid);
+ /* still somebody left who wants forced service? */
+ if (!lws_service_adjust_timeout(context, 1, pt->tid))
+ /* yes... come back again quickly */
+ timeout_ms = 0;
}
-#endif
- /* any socket with events to service? */
+ n = poll(pt->fds, pt->fds_count, timeout_ms);
- for (n = 0; n < context->fds_count; n++) {
+#ifdef LWS_OPENSSL_SUPPORT
+ if (!pt->rx_draining_ext_list &&
+ !lws_ssl_anybody_has_buffered_read_tsi(context, tsi) && !n) {
+#else
+ if (!pt->rx_draining_ext_list && !n) /* poll timeout */ {
+#endif
+ lws_service_fd_tsi(context, NULL, tsi);
+ return 0;
+ }
+
+faked_service:
+ m = lws_service_flag_pending(context, tsi);
+ if (m)
+ c = -1; /* unknown limit */
+ else
+ if (n < 0) {
+ if (LWS_ERRNO != LWS_EINTR)
+ return -1;
+ return 0;
+ } else
+ c = n;
- if (!context->fds[n].revents)
+ /* any socket with events to service? */
+ for (n = 0; n < pt->fds_count && c; n++) {
+ if (!pt->fds[n].revents)
continue;
- if (context->fds[n].fd == context->dummy_pipe_fds[0]) {
- if (read(context->fds[n].fd, &buf, 1) != 1)
+ c--;
+
+ if (pt->fds[n].fd == pt->dummy_pipe_fds[0]) {
+ if (read(pt->fds[n].fd, &buf, 1) != 1)
lwsl_err("Cannot read from dummy pipe.");
continue;
}
- m = lws_service_fd(context, &context->fds[n]);
+ m = lws_service_fd_tsi(context, &pt->fds[n], tsi);
if (m < 0)
return -1;
/* if something closed, retry this slot */
}
LWS_VISIBLE int
-lws_plat_set_socket_options(struct lws_context *context, int fd)
+lws_plat_check_connection_error(struct lws *wsi)
+{
+ return 0;
+}
+
+LWS_VISIBLE int
+lws_plat_service(struct lws_context *context, int timeout_ms)
+{
+ return _lws_plat_service_tsi(context, timeout_ms, 0);
+}
+
+LWS_VISIBLE int
+lws_plat_set_socket_options(struct lws_vhost *vhost, int fd)
{
int optval = 1;
socklen_t optlen = sizeof(optval);
-#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__) || \
+#if defined(__APPLE__) || \
+ defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
+ defined(__NetBSD__) || \
defined(__OpenBSD__)
struct protoent *tcp_proto;
#endif
- if (context->ka_time) {
+ if (vhost->ka_time) {
/* enable keepalive on this socket */
optval = 1;
if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE,
- (const void *)&optval, optlen) < 0)
+ (const void *)&optval, optlen) < 0)
return 1;
-#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__) || \
- defined(__CYGWIN__) || defined(__OpenBSD__)
+#if defined(__APPLE__) || \
+ defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
+ defined(__NetBSD__) || \
+ defined(__CYGWIN__) || defined(__OpenBSD__) || defined (__sun)
/*
* didn't find a way to set these per-socket, need to
*/
#else
/* set the keepalive conditions we want on it too */
- optval = context->ka_time;
+ optval = vhost->ka_time;
if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPIDLE,
- (const void *)&optval, optlen) < 0)
+ (const void *)&optval, optlen) < 0)
return 1;
- optval = context->ka_interval;
+ optval = vhost->ka_interval;
if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPINTVL,
- (const void *)&optval, optlen) < 0)
+ (const void *)&optval, optlen) < 0)
return 1;
- optval = context->ka_probes;
+ optval = vhost->ka_probes;
if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPCNT,
- (const void *)&optval, optlen) < 0)
+ (const void *)&optval, optlen) < 0)
return 1;
#endif
}
+#if defined(SO_BINDTODEVICE)
+ if (vhost->bind_iface) {
+ lwsl_info("binding listen skt to %s using SO_BINDTODEVICE\n", vhost->iface);
+ if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, vhost->iface,
+ strlen(vhost->iface)) < 0) {
+ lwsl_warn("Failed to bind to device %s\n", vhost->iface);
+ return 1;
+ }
+ }
+#endif
+
/* Disable Nagle */
optval = 1;
-#if !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__NetBSD__) && \
- !defined(__OpenBSD__)
+#if defined (__sun)
+ if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (const void *)&optval, optlen) < 0)
+ return 1;
+#elif !defined(__APPLE__) && \
+ !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__) && \
+ !defined(__NetBSD__) && \
+ !defined(__OpenBSD__)
if (setsockopt(fd, SOL_TCP, TCP_NODELAY, (const void *)&optval, optlen) < 0)
return 1;
#else
return 0;
}
+#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP)
+static void
+_lws_plat_apply_caps(int mode, cap_value_t *cv, int count)
+{
+ cap_t caps = cap_get_proc();
+
+ if (!count)
+ return;
+
+ cap_set_flag(caps, mode, count, cv, CAP_SET);
+ cap_set_proc(caps);
+ prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0);
+ cap_free(caps);
+}
+#endif
+
LWS_VISIBLE void
lws_plat_drop_app_privileges(struct lws_context_creation_info *info)
{
+#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP)
+ int n;
+#endif
+
+ if (info->gid != -1)
+ if (setgid(info->gid))
+ lwsl_warn("setgid: %s\n", strerror(LWS_ERRNO));
+
if (info->uid != -1) {
struct passwd *p = getpwuid(info->uid);
if (p) {
+
+#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP)
+ _lws_plat_apply_caps(CAP_PERMITTED, info->caps, info->count_caps);
+#endif
+
initgroups(p->pw_name, info->gid);
if (setuid(info->uid))
lwsl_warn("setuid: %s\n", strerror(LWS_ERRNO));
else
- lwsl_notice(" Set privs to user '%s'\n", p->pw_name);
+ lwsl_notice("Set privs to user '%s'\n", p->pw_name);
+
+#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP)
+ _lws_plat_apply_caps(CAP_EFFECTIVE, info->caps, info->count_caps);
+
+ if (info->count_caps)
+ for (n = 0; n < info->count_caps; n++)
+ lwsl_notice(" RETAINING CAPABILITY %d\n", (int)info->caps[n]);
+#endif
+
} else
lwsl_warn("getpwuid: unable to find uid %d", info->uid);
}
- if (info->gid != -1)
- if (setgid(info->gid))
- lwsl_warn("setgid: %s\n", strerror(LWS_ERRNO));
+}
+#ifdef LWS_WITH_PLUGINS
+
+#if defined(LWS_USE_LIBUV) && UV_VERSION_MAJOR > 0
+
+/* libuv.c implements these in a cross-platform way */
+
+#else
+
+static int filter(const struct dirent *ent)
+{
+ if (!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, ".."))
+ return 0;
+
+ return 1;
}
LWS_VISIBLE int
-lws_plat_init_lookup(struct lws_context *context)
+lws_plat_plugins_init(struct lws_context * context, const char * const *d)
{
- context->lws_lookup = lws_zalloc(sizeof(struct lws *) * context->max_fds);
- if (context->lws_lookup == NULL) {
- lwsl_err(
- "Unable to allocate lws_lookup array for %d connections\n",
- context->max_fds);
- return 1;
+ struct lws_plugin_capability lcaps;
+ struct lws_plugin *plugin;
+ lws_plugin_init_func initfunc;
+ struct dirent **namelist;
+ int n, i, m, ret = 0;
+ char path[256];
+ void *l;
+
+ lwsl_notice(" Plugins:\n");
+
+ while (d && *d) {
+ n = scandir(*d, &namelist, filter, alphasort);
+ if (n < 0) {
+ lwsl_err("Scandir on %s failed\n", *d);
+ return 1;
+ }
+
+ for (i = 0; i < n; i++) {
+ if (strlen(namelist[i]->d_name) < 7)
+ goto inval;
+
+ lwsl_notice(" %s\n", namelist[i]->d_name);
+
+ lws_snprintf(path, sizeof(path) - 1, "%s/%s", *d,
+ namelist[i]->d_name);
+ l = dlopen(path, RTLD_NOW);
+ if (!l) {
+ lwsl_err("Error loading DSO: %s\n", dlerror());
+ while (i++ < n)
+ free(namelist[i]);
+ goto bail;
+ }
+ /* we could open it, can we get his init function? */
+ m = lws_snprintf(path, sizeof(path) - 1, "init_%s",
+ namelist[i]->d_name + 3 /* snip lib... */);
+ path[m - 3] = '\0'; /* snip the .so */
+ initfunc = dlsym(l, path);
+ if (!initfunc) {
+ lwsl_err("Failed to get init on %s: %s",
+ namelist[i]->d_name, dlerror());
+ dlclose(l);
+ }
+ lcaps.api_magic = LWS_PLUGIN_API_MAGIC;
+ m = initfunc(context, &lcaps);
+ if (m) {
+ lwsl_err("Initializing %s failed %d\n",
+ namelist[i]->d_name, m);
+ dlclose(l);
+ goto skip;
+ }
+
+ plugin = lws_malloc(sizeof(*plugin));
+ if (!plugin) {
+ lwsl_err("OOM\n");
+ goto bail;
+ }
+ plugin->list = context->plugin_list;
+ context->plugin_list = plugin;
+ strncpy(plugin->name, namelist[i]->d_name, sizeof(plugin->name) - 1);
+ plugin->name[sizeof(plugin->name) - 1] = '\0';
+ plugin->l = l;
+ plugin->caps = lcaps;
+ context->plugin_protocol_count += lcaps.count_protocols;
+ context->plugin_extension_count += lcaps.count_extensions;
+
+ free(namelist[i]);
+ continue;
+
+ skip:
+ dlclose(l);
+ inval:
+ free(namelist[i]);
+ }
+ free(namelist);
+ d++;
}
- return 0;
+bail:
+ free(namelist);
+
+ return ret;
}
LWS_VISIBLE int
-lws_plat_init_fd_tables(struct lws_context *context)
+lws_plat_plugins_destroy(struct lws_context * context)
{
- context->fd_random = open(SYSTEM_RANDOM_FILEPATH, O_RDONLY);
- if (context->fd_random < 0) {
- lwsl_err("Unable to open random device %s %d\n",
- SYSTEM_RANDOM_FILEPATH, context->fd_random);
- return 1;
- }
+ struct lws_plugin *plugin = context->plugin_list, *p;
+ lws_plugin_destroy_func func;
+ char path[256];
+ int m;
- if (lws_libev_init_fd_table(context))
- /* libev handled it instead */
+ if (!plugin)
return 0;
- if (pipe(context->dummy_pipe_fds)) {
- lwsl_err("Unable to create pipe\n");
- return 1;
+ lwsl_notice("%s\n", __func__);
+
+ while (plugin) {
+ p = plugin;
+ m = lws_snprintf(path, sizeof(path) - 1, "destroy_%s", plugin->name + 3);
+ path[m - 3] = '\0';
+ func = dlsym(plugin->l, path);
+ if (!func) {
+ lwsl_err("Failed to get destroy on %s: %s",
+ plugin->name, dlerror());
+ goto next;
+ }
+ m = func(context);
+ if (m)
+ lwsl_err("Initializing %s failed %d\n",
+ plugin->name, m);
+next:
+ dlclose(p->l);
+ plugin = p->list;
+ p->list = NULL;
+ free(p);
}
- /* use the read end of pipe as first item */
- context->fds[0].fd = context->dummy_pipe_fds[0];
- context->fds[0].events = LWS_POLLIN;
- context->fds[0].revents = 0;
- context->fds_count = 1;
+ context->plugin_list = NULL;
return 0;
}
-static void sigpipe_handler(int x)
+#endif
+#endif
+
+
+#if 0
+static void
+sigabrt_handler(int x)
{
+ printf("%s\n", __func__);
+ //*(char *)0 = 0;
}
-
+#endif
LWS_VISIBLE int
lws_plat_context_early_init(void)
{
- sigset_t mask;
-
- signal(SIGUSR2, lws_sigusr2);
- sigemptyset(&mask);
- sigaddset(&mask, SIGUSR2);
-
- sigprocmask(SIG_BLOCK, &mask, NULL);
+#if !defined(LWS_AVOID_SIGPIPE_IGN)
+ signal(SIGPIPE, SIG_IGN);
+#endif
- signal(SIGPIPE, sigpipe_handler);
+// signal(SIGABRT, sigabrt_handler);
return 0;
}
LWS_VISIBLE void
lws_plat_context_late_destroy(struct lws_context *context)
{
+ struct lws_context_per_thread *pt = &context->pt[0];
+ int m = context->count_threads;
+
+#ifdef LWS_WITH_PLUGINS
+ if (context->plugin_list)
+ lws_plat_plugins_destroy(context);
+#endif
+
if (context->lws_lookup)
lws_free(context->lws_lookup);
- close(context->dummy_pipe_fds[0]);
- close(context->dummy_pipe_fds[1]);
- close(context->fd_random);
+ while (m--) {
+ if (pt->dummy_pipe_fds[0])
+ close(pt->dummy_pipe_fds[0]);
+ if (pt->dummy_pipe_fds[1])
+ close(pt->dummy_pipe_fds[1]);
+ pt++;
+ }
+ if (!context->fd_random)
+ lwsl_err("ZERO RANDOM FD\n");
+ if (context->fd_random != LWS_INVALID_FILE)
+ close(context->fd_random);
}
/* cast a struct sockaddr_in6 * into addr for ipv6 */
LWS_VISIBLE int
-interface_to_sa(struct lws_context *context,
- const char *ifname, struct sockaddr_in *addr, size_t addrlen)
+lws_interface_to_sa(int ipv6, const char *ifname, struct sockaddr_in *addr,
+ size_t addrlen)
{
int rc = -1;
switch (ifc->ifa_addr->sa_family) {
case AF_INET:
#ifdef LWS_USE_IPV6
- if (LWS_IPV6_ENABLED(context)) {
+ if (ipv6) {
/* map IPv4 to IPv6 */
bzero((char *)&addr6->sin6_addr,
sizeof(struct in6_addr));
freeifaddrs(ifr);
if (rc == -1) {
- /* check if bind to IP adddress */
+ /* check if bind to IP address */
#ifdef LWS_USE_IPV6
if (inet_pton(AF_INET6, ifname, &addr6->sin6_addr) == 1)
rc = 0;
}
LWS_VISIBLE void
-lws_plat_insert_socket_into_fds(struct lws_context *context,
- struct lws *wsi)
+lws_plat_insert_socket_into_fds(struct lws_context *context, struct lws *wsi)
{
- lws_libev_io(context, wsi, LWS_EV_START | LWS_EV_READ);
- context->fds[context->fds_count++].revents = 0;
+ struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
+
+ lws_libev_io(wsi, LWS_EV_START | LWS_EV_READ);
+ lws_libuv_io(wsi, LWS_EV_START | LWS_EV_READ);
+ lws_libevent_io(wsi, LWS_EV_START | LWS_EV_READ);
+
+ pt->fds[pt->fds_count++].revents = 0;
}
LWS_VISIBLE void
lws_plat_delete_socket_from_fds(struct lws_context *context,
struct lws *wsi, int m)
{
+ struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi];
+
+ lws_libev_io(wsi, LWS_EV_STOP | LWS_EV_READ | LWS_EV_WRITE);
+ lws_libuv_io(wsi, LWS_EV_STOP | LWS_EV_READ | LWS_EV_WRITE);
+ lws_libevent_io(wsi, LWS_EV_STOP | LWS_EV_READ | LWS_EV_WRITE);
+
+ pt->fds_count--;
}
LWS_VISIBLE void
{
/* if our parent went down, don't linger around */
if (context->started_with_parent &&
- kill(context->started_with_parent, 0) < 0)
+ kill(context->started_with_parent, 0) < 0)
kill(getpid(), SIGTERM);
}
return 0;
}
+LWS_VISIBLE const char *
+lws_plat_inet_ntop(int af, const void *src, char *dst, int cnt)
+{
+ return inet_ntop(af, src, dst, cnt);
+}
+
LWS_VISIBLE int
-lws_plat_open_file(const char* filename, unsigned long* filelen)
+lws_plat_inet_pton(int af, const char *src, void *dst)
+{
+ return inet_pton(af, src, dst);
+}
+
+LWS_VISIBLE lws_fop_fd_t
+_lws_plat_file_open(const struct lws_plat_file_ops *fops, const char *filename,
+ const char *vpath, lws_fop_flags_t *flags)
{
struct stat stat_buf;
- int ret = open(filename, O_RDONLY);
+ int ret = open(filename, (*flags) & LWS_FOP_FLAGS_MASK, 0664);
+ lws_fop_fd_t fop_fd;
if (ret < 0)
- return LWS_INVALID_FILE;
+ return NULL;
+
+ if (fstat(ret, &stat_buf) < 0)
+ goto bail;
+
+ fop_fd = malloc(sizeof(*fop_fd));
+ if (!fop_fd)
+ goto bail;
+
+ fop_fd->fops = fops;
+ fop_fd->flags = *flags;
+ fop_fd->fd = ret;
+ fop_fd->filesystem_priv = NULL; /* we don't use it */
+ fop_fd->len = stat_buf.st_size;
+ fop_fd->pos = 0;
+
+ return fop_fd;
+
+bail:
+ close(ret);
+ return NULL;
+}
+
+LWS_VISIBLE int
+_lws_plat_file_close(lws_fop_fd_t *fop_fd)
+{
+ int fd = (*fop_fd)->fd;
+
+ free(*fop_fd);
+ *fop_fd = NULL;
+
+ return close(fd);
+}
+
+LWS_VISIBLE lws_fileofs_t
+_lws_plat_file_seek_cur(lws_fop_fd_t fop_fd, lws_fileofs_t offset)
+{
+ lws_fileofs_t r;
+
+ if (offset > 0 && offset > fop_fd->len - fop_fd->pos)
+ offset = fop_fd->len - fop_fd->pos;
- if (fstat(ret, &stat_buf) < 0) {
- close(ret);
- return LWS_INVALID_FILE;
+ if ((lws_fileofs_t)fop_fd->pos + offset < 0)
+ offset = -fop_fd->pos;
+
+ r = lseek(fop_fd->fd, offset, SEEK_CUR);
+
+ if (r >= 0)
+ fop_fd->pos = r;
+ else
+ lwsl_err("error seeking from cur %ld, offset %ld\n",
+ (long)fop_fd->pos, (long)offset);
+
+ return r;
+}
+
+LWS_VISIBLE int
+_lws_plat_file_read(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
+ uint8_t *buf, lws_filepos_t len)
+{
+ long n;
+
+ n = read((int)fop_fd->fd, buf, len);
+ if (n == -1) {
+ *amount = 0;
+ return -1;
}
- *filelen = stat_buf.st_size;
- return ret;
+ fop_fd->pos += n;
+ lwsl_debug("%s: read %ld of req %ld, pos %ld, len %ld\n", __func__, n,
+ (long)len, (long)fop_fd->pos, (long)fop_fd->len);
+ *amount = n;
+
+ return 0;
}
-LWS_VISIBLE const char *
-lws_plat_inet_ntop(int af, const void *src, char *dst, int cnt)
+LWS_VISIBLE int
+_lws_plat_file_write(lws_fop_fd_t fop_fd, lws_filepos_t *amount,
+ uint8_t *buf, lws_filepos_t len)
{
- return inet_ntop(af, src, dst, cnt);
+ long n;
+
+ n = write((int)fop_fd->fd, buf, len);
+ if (n == -1) {
+ *amount = 0;
+ return -1;
+ }
+
+ fop_fd->pos += n;
+ *amount = n;
+
+ return 0;
+}
+
+
+LWS_VISIBLE int
+lws_plat_init(struct lws_context *context,
+ struct lws_context_creation_info *info)
+{
+ struct lws_context_per_thread *pt = &context->pt[0];
+ int n = context->count_threads, fd;
+
+ /* master context has the global fd lookup array */
+ context->lws_lookup = lws_zalloc(sizeof(struct lws *) *
+ context->max_fds);
+ if (context->lws_lookup == NULL) {
+ lwsl_err("OOM on lws_lookup array for %d connections\n",
+ context->max_fds);
+ return 1;
+ }
+
+ lwsl_notice(" mem: platform fd map: %5lu bytes\n",
+ (unsigned long)(sizeof(struct lws *) * context->max_fds));
+ fd = open(SYSTEM_RANDOM_FILEPATH, O_RDONLY);
+
+ context->fd_random = fd;
+ if (context->fd_random < 0) {
+ lwsl_err("Unable to open random device %s %d\n",
+ SYSTEM_RANDOM_FILEPATH, context->fd_random);
+ return 1;
+ }
+
+ if (!lws_libev_init_fd_table(context) &&
+ !lws_libuv_init_fd_table(context) &&
+ !lws_libevent_init_fd_table(context)) {
+ /* otherwise libev handled it instead */
+
+ while (n--) {
+ if (pipe(pt->dummy_pipe_fds)) {
+ lwsl_err("Unable to create pipe\n");
+ return 1;
+ }
+
+ /* use the read end of pipe as first item */
+ pt->fds[0].fd = pt->dummy_pipe_fds[0];
+ pt->fds[0].events = LWS_POLLIN;
+ pt->fds[0].revents = 0;
+ pt->fds_count = 1;
+ pt++;
+ }
+ }
+
+#ifdef LWS_WITH_PLUGINS
+ if (info->plugin_dirs)
+ lws_plat_plugins_init(context, info->plugin_dirs);
+#endif
+
+ return 0;
}
projects / platform / upstream / libwebsockets.git / blobdiff