simplify osx_write_pre_select()
[paraslash.git] / write.c
diff --git a/write.c b/write.c
index 508aee7..7f29665 100644 (file)
--- a/write.c
+++ b/write.c
@@ -32,8 +32,9 @@ INIT_WRITE_ERRLISTS;
 struct check_wav_task {
        char *buf;
        size_t *loaded;
+       int *eof;
        unsigned channels;
-       unsigned sample_rate;
+       unsigned samplerate;
        struct task task;
 };
 
@@ -42,7 +43,7 @@ struct initial_delay_task {
        struct task task;
 };
 
-struct gengetopt_args_info conf;
+static struct write_args_info conf;
 struct stdin_task sit;
 struct check_wav_task cwt;
 struct initial_delay_task idt;
@@ -53,41 +54,42 @@ static struct writer_node_group *wng;
 /**
  * test if audio buffer contains a valid wave header
  *
- * \return If not, return 0, otherwise, store number of channels and sample rate
- * in struct conf and return WAV_HEADER_LEN.
+ * \return If not, return -E_NO_WAV_HEADER, otherwise, return zero. If
+ * there is less than WAV_HEADER_LEN bytes awailable, return one.
  */
-static void check_wav_pre_select(struct sched *s, struct task *t)
+static void check_wav_pre_select(__a_unused struct sched *s, struct task *t)
 {
-       struct check_wav_task *cwt = t->private_data;
+       struct check_wav_task *wt = t->private_data;
        unsigned char *a;
 
-       if (*cwt->loaded < WAV_HEADER_LEN) {
-               t->ret = 1;
+       if (*wt->loaded < WAV_HEADER_LEN) {
+               t->ret = *wt->eof? -E_PREMATURE_END : 1;
                return;
        }
-       a = (unsigned char*)cwt->buf;
+       wt->channels = 2;
+       wt->samplerate = 44100;
+       a = (unsigned char*)wt->buf;
        t->ret = -E_NO_WAV_HEADER;
        if (a[0] != 'R' || a[1] != 'I' || a[2] != 'F' || a[3] != 'F')
                return;
-       cwt->channels = (unsigned) a[22];
-       cwt->sample_rate = a[24] + (a[25] << 8) + (a[26] << 16) + (a[27] << 24);
-       *cwt->loaded -= WAV_HEADER_LEN;
-       memmove(cwt->buf, cwt->buf + WAV_HEADER_LEN, *cwt->loaded);
-       t->ret = 0;
-       PARA_INFO_LOG("channels: %d, sample_rate: %d\n", cwt->channels, cwt->sample_rate);
+       wt->channels = (unsigned) a[22];
+       wt->samplerate = a[24] + (a[25] << 8) + (a[26] << 16) + (a[27] << 24);
+       *wt->loaded -= WAV_HEADER_LEN;
+       memmove(wt->buf, wt->buf + WAV_HEADER_LEN, *wt->loaded);
+       t->ret = -E_WAV_HEADER_SUCCESS;
+       PARA_INFO_LOG("channels: %d, sample rate: %d\n", wt->channels, wt->samplerate);
 }
 
 static void initial_delay_pre_select(struct sched *s, struct task *t)
 {
-       struct initial_delay_task *idt = t->private_data;
+       struct initial_delay_task *dt = t->private_data;
        struct timeval diff;
 
-       PARA_ERROR_LOG("task %p, ret: %d\n", t, t->ret);
        t->ret = -E_NO_DELAY;
-       if (!idt->start_time.tv_sec && !idt->start_time.tv_usec)
+       if (!dt->start_time.tv_sec && !dt->start_time.tv_usec)
                return;
-       t->ret = 0; /* timeout */
-       if (tv_diff(&s->now, &idt->start_time, &diff) > 0)
+       t->ret = -E_DELAY_TIMEOUT;
+       if (tv_diff(now, &dt->start_time, &diff) > 0)
                return;
        t->ret = 1;
        if (tv_diff(&s->timeout , &diff, NULL) > 0)
@@ -108,7 +110,7 @@ void para_log(int ll, const char* fmt,...)
 static struct writer_node_group *check_args(void)
 {
        int i, ret = -E_WRITE_SYNTAX;
-       struct writer_node_group *wng = NULL;
+       struct writer_node_group *g = NULL;
 
        if (conf.list_writers_given) {
                char *msg = NULL;
@@ -124,8 +126,6 @@ static struct writer_node_group *check_args(void)
                free(msg);
                exit(EXIT_SUCCESS);
        }
-       if (conf.prebuffer_arg < 0 || conf.prebuffer_arg > 100)
-               goto out;
        if (conf.start_time_given) {
                long unsigned sec, usec;
                if (sscanf(conf.start_time_arg, "%lu:%lu",
@@ -135,32 +135,50 @@ static struct writer_node_group *check_args(void)
                idt.start_time.tv_usec = usec;
        }
        if (!conf.writer_given) {
-               wng = setup_default_wng();
+               g = setup_default_wng();
                ret = 1;
                goto out;
        }
-       wng = wng_new(conf.writer_given);
+       g = wng_new(conf.writer_given);
+       ret = -E_WRITE_SYNTAX;
        for (i = 0; i < conf.writer_given; i++) {
-               ret = check_writer_arg(conf.writer_arg[i]);
-               if (ret < 0)
+               int writer_num;
+               g->writer_nodes[i].conf = check_writer_arg(
+                       conf.writer_arg[i], &writer_num);
+               if (!g->writer_nodes[i].conf)
                        goto out;
-               wng->writer_nodes[i].writer = &writers[ret];
+               g->writer_nodes[i].writer = &writers[writer_num];
        }
        ret = 1;
 out:
        if (ret > 0)
-               return wng;
-       free(wng);
+               return g;
+       free(g);
        return NULL;
 }
 
-static void idt_error_handler(struct task *t)
+static void wng_event_handler(struct task *t)
+{
+       struct writer_node_group *g = t->private_data;
+
+       PARA_INFO_LOG("%s\n", PARA_STRERROR(-t->ret));
+       unregister_task(t);
+       wng_close(g);
+}
+
+
+static void idt_event_handler(struct task *t)
 {
-       PARA_ERROR_LOG("task %p, ret: %d\n", t, t->ret);
        int ret;
+
+       PARA_INFO_LOG("%s\n", PARA_STRERROR(-t->ret));
        unregister_task(t);
        wng->buf = sit.buf;
        wng->loaded = &sit.loaded;
+       wng->input_eof = &sit.eof;
+       wng->task.event_handler = wng_event_handler;
+       wng->channels = &cwt.channels;
+       wng->samplerate = &cwt.samplerate;
        ret = wng_open(wng);
        if (ret < 0) {
                PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret));
@@ -168,63 +186,49 @@ static void idt_error_handler(struct task *t)
        }
 }
 
-static void cwt_error_handler(struct task *t)
+static void cwt_event_handler(struct task *t)
 {
-       PARA_ERROR_LOG("task %p, ret: %d\n", t, t->ret);
-       if (t->ret < 0) {
+       if (t->ret != -E_NO_WAV_HEADER && t->ret != -E_WAV_HEADER_SUCCESS) {
                PARA_ERROR_LOG("%s\n", PARA_STRERROR(-t->ret));
-               if (t->ret != -E_NO_WAV_HEADER && t->ret != -E_PRE_EOF)
-                       exit(EXIT_FAILURE);
-               if (t->ret == -E_PRE_EOF) {
-                       conf.channels_arg = cwt.channels;
-                       conf.sample_rate_arg = cwt.sample_rate;
-               }
+               exit(EXIT_FAILURE);
        }
+       PARA_INFO_LOG("%s\n", PARA_STRERROR(-t->ret));
        unregister_task(t);
+//     if (t->ret == -E_WAV_HEADER_SUCCESS) {
+//             conf.channels_arg = cwt.channels;
+//             conf.sample_rate_arg = cwt.sample_rate;
+//     }
        idt.task.pre_select = initial_delay_pre_select;
        idt.task.private_data = &idt;
-       idt.task.error_handler = idt_error_handler;
-       idt.task.flags = PRE_EOF_IS_ERROR;
+       idt.task.event_handler = idt_event_handler;
+       sprintf(idt.task.status, "initial_delay");
        register_task(&idt.task);
 }
 
-static void stdin_error_handler(struct task *t)
-{
-       unregister_task(t);
-       PARA_INFO_LOG("task %p, ret: %d\n", t, t->ret);
-       if (t->ret < 0)
-               PARA_ERROR_LOG("%s\n", PARA_STRERROR(-t->ret));
-       wng->eof = 1;
-}
-
 int main(int argc, char *argv[])
 {
        int ret = -E_WRITE_SYNTAX;
        struct sched s;
 
-       cmdline_parser(argc, argv, &conf);
+       write_cmdline_parser(argc, argv, &conf);
+       init_supported_writers();
+
        wng = check_args();
        if (!wng)
                goto out;
-       init_supported_writers();
-       init_sched();
-
-       sit.bufsize = 16 * 1024,
-       sit.buf = para_malloc(16 * 1024),
-       sit.loaded = 0,
-       sit.task.pre_select = stdin_pre_select;
-       sit.task.post_select = stdin_post_select;
-       sit.task.error_handler = stdin_error_handler;
-       sit.task.flags = POST_EOF_IS_ERROR;
-       sit.task.private_data = &sit;
+       stdin_set_defaults(&sit);
+       if (conf.bufsize_given)
+               sit.bufsize = conf.bufsize_arg;
+       sit.buf = para_malloc(sit.bufsize),
        register_task(&sit.task);
 
        cwt.task.pre_select = check_wav_pre_select;
        cwt.task.private_data = &cwt;
-       cwt.task.error_handler = cwt_error_handler;
+       cwt.task.event_handler = cwt_event_handler;
        cwt.buf = sit.buf;
        cwt.loaded = &sit.loaded;
-       cwt.task.flags = PRE_EOF_IS_ERROR;
+       cwt.eof = &sit.eof;
+       sprintf(cwt.task.status, "check wav");
        register_task(&cwt.task);
 
        s.default_timeout.tv_sec = 1;