112 lines
3.7 KiB
C
112 lines
3.7 KiB
C
#include "pipe.h"
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#include "command.h"
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#include "queue.h"
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#include <errno.h>
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#include <fcntl.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <time.h>
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#include <unistd.h>
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#define FIFO_PATH "/tmp/looper_cmd"
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#define LINE_MAX 256
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/* forward‑declare the global queues (defined in looper.c) */
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extern spsc_queue_t cmd_queue;
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extern spsc_queue_t cmd_queue_main_fifo;
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static void *pipe_thread_func(void *arg) {
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(void)arg;
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char line[LINE_MAX];
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while (1) {
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FILE *fifo = fopen(FIFO_PATH, "r");
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if (!fifo) {
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perror("fopen fifo");
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return NULL;
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}
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while (fgets(line, sizeof(line), fifo)) {
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/* strip newline */
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size_t len = strlen(line);
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if (len > 0 && line[len - 1] == '\n')
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line[len - 1] = '\0';
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if (strcmp(line, "add") == 0) {
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command_t cmd = {.type = CMD_ADD_CHANNEL, .channel = -1, .data = 0};
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queue_push(&cmd_queue, cmd);
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} else if (strcmp(line, "add_midi") == 0) {
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<<<<<<< HEAD
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command_t cmd = {.type = CMD_ADD_MIDI_CHANNEL, .channel = -1, .data = 0};
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queue_push(&cmd_queue, cmd);
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=======
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command_t cmd = {
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.type = CMD_ADD_MIDI_CHANNEL, .channel = -1, .data = 0};
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queue_push(&cmd_queue_main_fifo, cmd);
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>>>>>>> 3-integrate-carla
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} else if (strcmp(line, "remove") == 0) {
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command_t cmd = {.type = CMD_REMOVE_CHANNEL, .channel = -1, .data = 0};
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queue_push(&cmd_queue, cmd);
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} else if (strncmp(line, "record ", 7) == 0) {
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int ch = atoi(line + 7);
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command_t cmd = {.type = CMD_CYCLE, .channel = ch, .data = 0};
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queue_push(&cmd_queue, cmd);
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} else if (strcmp(line, "stop") == 0) {
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command_t cmd = {.type = CMD_STOP, .channel = -1, .data = 0};
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queue_push(&cmd_queue, cmd);
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} else if (strncmp(line, "bind ", 5) == 0) {
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int ch = atoi(line + 5);
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command_t cmd = {.type = CMD_BIND_CHANNEL, .channel = -1, .data = ch};
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queue_push(&cmd_queue, cmd);
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} else if (strcmp(line, "unbind") == 0) {
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command_t cmd = {.type = CMD_UNBIND, .channel = -1, .data = 0};
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queue_push(&cmd_queue, cmd);
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} else if (strcmp(line, "scene_add") == 0) {
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command_t cmd = {.type = CMD_ADD_SCENE, .channel = -1, .data = 0};
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queue_push(&cmd_queue, cmd);
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} else if (strcmp(line, "scene_remove") == 0) {
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command_t cmd = {.type = CMD_REMOVE_SCENE, .channel = -1, .data = 0};
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queue_push(&cmd_queue, cmd);
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} else if (strcmp(line, "scene_next") == 0) {
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command_t cmd = {.type = CMD_NEXT_SCENE, .channel = -1, .data = 0};
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queue_push(&cmd_queue, cmd);
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} else if (strcmp(line, "scene_prev") == 0) {
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command_t cmd = {.type = CMD_PREV_SCENE, .channel = -1, .data = 0};
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queue_push(&cmd_queue, cmd);
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} else if (strcmp(line, "load") == 0) {
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command_t cmd = {.type = CMD_LOAD, .channel = -1, .data = 0};
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queue_push(&cmd_queue, cmd);
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} else if (strcmp(line, "save") == 0) {
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command_t cmd = {.type = CMD_SAVE, .channel = -1, .data = 0};
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queue_push(&cmd_queue, cmd);
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}
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/* ignore unknown lines */
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}
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/* EOF – all writers closed, reopen for next connection */
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fclose(fifo);
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{
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struct timespec ts = {.tv_sec = 0, .tv_nsec = 50000000};
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nanosleep(&ts, NULL);
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} /* small pause before retrying */
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}
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return NULL; /* unreachable */
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}
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int pipe_start_reader(void) {
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/* create FIFO if it doesn't exist */
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if (mkfifo(FIFO_PATH, 0666) != 0 && errno != EEXIST) {
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perror("mkfifo");
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return -1;
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}
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pthread_t tid;
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if (pthread_create(&tid, NULL, pipe_thread_func, NULL) != 0) {
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perror("pthread_create");
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return -1;
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}
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pthread_detach(tid); /* we don't need to join */
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return 0;
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}
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