/*
- * Copyright (C) 2006-2008 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2006-2009 Andre Noll <maan@systemlinux.org>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
* \sa filter_chain filter_chain_info filter.
*/
+#include <regex.h>
#include <sys/types.h>
#include <dirent.h>
#include "para.h"
-#include "grab_client.cmdline.h"
#include "list.h"
#include "sched.h"
+#include "ggo.h"
#include "filter.h"
#include "grab_client.h"
#include "audiod.h"
#include "error.h"
#include "string.h"
#include "fd.h"
-#include "crypt.h"
/** Grab clients that are not yet attached to a filter node. */
struct list_head inactive_grab_client_list;
static int max_num_filters(void)
{
int i, ret = 0;
+
for (i = 0; audio_formats[i]; i++) {
PARA_INFO_LOG("%s filter chain length: %d\n", audio_formats[i],
num_filters(i));
return ret;
}
-static int gc_write(char *buf, size_t len, struct filter_callback *fcb)
+static struct filter_node *find_filter_node(int format, int filternum)
{
- struct grab_client *gc = fcb->data;
- struct timeval tv = {0, 100};
- int ret;
+ int i;
-// PARA_INFO_LOG("writing %d bytes to fd %d\n", len, gc->fd);
- fd_set wfds;
- FD_ZERO(&wfds);
- FD_SET(gc->fd, &wfds);
- ret = para_select(gc->fd + 1, NULL, &wfds, &tv);
- if (ret <= 0) {
- if (gc->mode == GRAB_PEDANTIC)
- return -E_PEDANTIC_GRAB;
- if (gc->mode == GRAB_SLOPPY)
- return 1;
- }
-rewrite:
- ret = write(gc->fd, buf, len);
- if (ret < 0) {
- ret = -E_GC_WRITE;
- gc->error = E_GC_WRITE;
- } else {
- if (ret != len) {
- if (gc->mode == GRAB_PEDANTIC)
- return -E_PEDANTIC_GRAB;
- if (gc->mode == GRAB_AGGRESSIVE) {
- len -= ret;
- memmove(buf, buf + ret, len);
- goto rewrite;
- }
- }
+ FOR_EACH_SLOT(i) {
+ struct slot_info *s = &slot[i];
+ if (s->format < 0 || !s->fc)
+ continue;
+ if (format >= 0 && s->format != format)
+ continue;
+ if (num_filters(i) <= filternum)
+ continue;
+ /* success */
+ return s->fc->filter_nodes + filternum;
}
- return ret;
+ return NULL;
}
-/* TODO: gengetopt can handle the grab client modes */
-static int check_gc_args(struct grab_client *gc)
+static int gc_write(char *buf, size_t len, struct filter_callback *fcb)
{
- int i;
- struct grab_client_args_info *c = gc->conf;
- char **mv = grab_client_cmdline_parser_mode_values;
+ struct grab_client *gc = container_of(fcb, struct grab_client, fcb);
+ size_t written = 0;
- PARA_INFO_LOG("filter_num: %d\n", c->filter_num_arg);
- for (i = 0; mv[i]; i++)
- if (!strcmp(c->mode_arg, mv[i]))
- break;
- if (!mv[i])
- return -E_GC_SYNTAX;
- gc->mode = i;
- gc->audio_format_num = -1;
- if (c->audio_format_given) {
- gc->audio_format_num = get_audio_format_num(c->audio_format_arg);
- if (gc->audio_format_num < 0)
- return gc->audio_format_num;
+ while (written < len) {
+ int ret = write_ok(gc->fd);
+ if (ret < 0)
+ goto err;
+ if (ret == 0) { /* fd not ready */
+ if (gc->mode == GM_PEDANTIC)
+ goto err;
+ if (gc->mode == GM_SLOPPY)
+ return 1;
+ }
+ ret = write(gc->fd, buf + written, len - written);
+ if (ret < 0) {
+ if (errno != EAGAIN && errno != EINTR)
+ goto err;
+ if (gc->mode == GM_PEDANTIC)
+ goto err;
+ if (gc->mode == GM_SLOPPY)
+ return 1;
+ } else
+ written += ret;
}
- if (c->slot_arg > MAX_STREAM_SLOTS)
- return -E_BAD_GC_SLOT;
- if (c->filter_num_arg <= 0)
- return -E_BAD_GC_FILTER_NUM;
- if (c->audio_format_given) {
- if (num_filters(gc->audio_format_num) < c->filter_num_arg)
- return -E_BAD_GC_FILTER_NUM;
- } else
- if (c->filter_num_arg > max_num_filters())
- return -E_BAD_GC_FILTER_NUM;
-
return 1;
+err:
+ gc->error = -E_GC_WRITE;
+ return -E_GC_WRITE;
}
static void add_inactive_gc(struct grab_client *gc)
para_list_add(&gc->node, &inactive_grab_client_list);
}
-static void gc_free(struct grab_client *gc)
-{
- int i;
-
- for (i = 0; i < gc->argc; i++)
- free(gc->argv[i]);
- free(gc->argv);
- free(gc->conf);
- free(gc);
-
-}
-
static void gc_close(struct filter_callback *fcb)
{
- struct grab_client *gc = fcb->data;
+ struct grab_client *gc = container_of(fcb, struct grab_client, fcb);
- if (gc->conf->one_shot_given || gc->error) {
+ if ((gc->flags & GF_ONE_SHOT) || gc->error < 0) {
PARA_INFO_LOG("closing fd %d (grab client %p)\n", gc->fd, gc);
close(gc->fd);
- gc_free(gc);
- /* close on fork ?*/
+ free(gc);
return;
}
add_inactive_gc(gc);
/**
* Activate inactive grab clients if possible.
*
- * \param slot_num Audiod's slot for the new audio file.
* \param audio_format_num The number of the audio format of the new audio file.
* \param fc The filter chain containing the activated filters.
*
* \sa filter_chain_info::filters, inactive_grab_client_list,
* activate_grab_client.
*/
-void activate_inactive_grab_clients(int slot_num, int audio_format_num,
+void activate_inactive_grab_clients(int audio_format_num,
struct filter_chain *fc)
{
struct grab_client *gc, *tmp;
- int filter_num;
struct filter_node *fn;
list_for_each_entry_safe(gc, tmp, &inactive_grab_client_list, node) {
-// PARA_INFO_LOG("checking inactive grab client %p\n", gc);
- if (gc->conf->slot_arg >= 0 && gc->conf->slot_arg != slot_num)
- continue;
if (gc->audio_format_num >= 0 && gc->audio_format_num !=
audio_format_num)
continue;
- filter_num = gc->conf->filter_num_arg;
- if (filter_num >= 0 && filter_num >= num_filters(gc->audio_format_num))
+ if (gc->filter_num >= num_filters(audio_format_num))
continue;
- if (filter_num < 0)
- filter_num = 0;
- fn = fc->filter_nodes + filter_num;
+ fn = fc->filter_nodes + gc->filter_num;
activate_grab_client(gc, fn);
}
}
+static int check_gc_args(int argc, char **argv, struct grab_client *gc)
+{
+ int i, ret;
+
+ gc->audio_format_num = -1; /* default: grab any audio format */
+ for (i = 1; i < argc; i++) {
+ const char *arg = argv[i];
+ if (arg[0] != '-')
+ break;
+ if (!strcmp(arg, "--")) {
+ i++;
+ break;
+ }
+ if (!strncmp(arg, "-n=", 3)) {
+ ret = para_atoi32(arg + 3, &gc->filter_num);
+ if (ret < 0)
+ return ret;
+ if (gc->filter_num < 0)
+ return -E_BAD_GC_FILTER_NUM;
+ if (gc->filter_num >= max_num_filters())
+ return -E_BAD_GC_FILTER_NUM;
+ continue;
+ }
+ if (!strncmp(arg, "-m", 2)) {
+ if (*(arg + 3))
+ return -E_GC_SYNTAX;
+ switch(*(arg + 2)) {
+ case 's':
+ gc->mode = GM_SLOPPY;
+ continue;
+ case 'a':
+ gc->mode = GM_AGGRESSIVE;
+ continue;
+ case 'p':
+ gc->mode = GM_PEDANTIC;
+ continue;
+ default:
+ return -E_GC_SYNTAX;
+ }
+ }
+ if (!strcmp(arg, "-i")) {
+ gc->flags |= GF_INPUT_GRAB;
+ continue;
+ }
+ if (!strcmp(arg, "-o")) {
+ gc->flags |= GF_ONE_SHOT;
+ continue;
+ }
+ if (!strncmp(arg, "-f=", 3)) {
+ ret = get_audio_format_num(arg + 3);
+ if (ret < 0)
+ return ret;
+ gc->audio_format_num = ret;
+ continue;
+ }
+ return -E_GC_SYNTAX;
+ }
+ if (i != argc)
+ return -E_GC_SYNTAX;
+ return 1;
+}
+
/**
* Check the command line options and allocate a grab_client structure.
*
* \param fd The file descriptor of the client.
- * \param line The command line.
- * \param err Non-zero if an error occurred.
+ * \param argc Argument count.
+ * \param argv Argument vector.
*
* If the command line options given by \a argc and \a argv are valid.
* allocate a struct grab_client and initialize it with this valid
* configuration. Moreover, add the new grab client to the inactive list.
*
- * \return On success, this function returns a pointer to the newly created
- * struct. On errors, it returns NULL and sets \a err appropriately.
+ * \return Standard.
*
* \sa grab_client, inactive_grab_client_list, activate_grab_client,
* filter_node::callbacks.
*/
-/*
- * argc, argv get freed when com_grab() returns, so we have to make a
- * copy.
- */
-struct grab_client *grab_client_new(int fd, char *line, int *err)
+int grab_client_new(int fd, int argc, char **argv)
{
int ret;
struct grab_client *gc = para_calloc(sizeof(struct grab_client));
+ struct filter_node *fn;
- gc->conf = para_calloc(sizeof(struct grab_client_args_info));
-
- ret = grab_client_cmdline_parser_string(line, gc->conf, "grab");
- *err = -E_GC_SYNTAX;
- if (ret)
- goto err_out;
- *err = -E_GC_HELP_GIVEN;
- if (gc->conf->help_given)
+ ret = check_gc_args(argc, argv, gc);
+ if (ret < 0)
goto err_out;
- *err = -E_GC_VERSION_GIVEN;
- if (gc->conf->version_given)
- goto err_out;
- *err = check_gc_args(gc);
- if (*err < 0)
- goto err_out;
- if (gc->conf->input_grab_given) {
+ if (gc->flags & GF_INPUT_GRAB)
gc->fcb.input_cb = gc_write;
- gc->fcb.output_cb = NULL;
- } else {
+ else
gc->fcb.output_cb = gc_write;
- gc->fcb.input_cb = NULL;
- }
gc->fd = fd;
gc->fcb.close = gc_close;
- gc->fcb.data = gc;
- add_inactive_gc(gc);
- return gc;
+ fn = find_filter_node(gc->audio_format_num, gc->filter_num);
+ if (fn)
+ para_list_add(&gc->fcb.node, &fn->callbacks);
+ else
+ add_inactive_gc(gc);
+ return 1;
err_out:
- free(gc->conf);
free(gc);
- return NULL;
+ return ret;
}
/**
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