add: relay/piface support

handlers/command.c

@@ -0,0 +1,113 @@
+#include <string.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <uuid/uuid.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+#include <netdb.h>
+#include <errno.h>
+
+#include <logger.h>
+#include <handlers.h>
+#include <helpers.h>
+#include <enums.h>
+#include <binn.h>
+#include <models/schedule.h>
+
+static void
+handler_command_set_schedule(binn *map, controller_t *controller)
+{
+    uint8_t relay_num = binn_map_uint8(map, COMMAND_MAPPING_RELAY_NUM);
+    int uuid_size = sizeof(uuid_t);
+    uuid_t schedule_id;
+    memmove(schedule_id, binn_map_blob(map, COMMAND_MAPPING_SCHEDULE_ID, &uuid_size), uuid_size);
+    uint16_t periods_count = binn_map_uint16(map, COMMAND_MAPPING_PERIODS_COUNT);
+    int periods_size = sizeof(uint16_t) * (periods_count * 2);
+    uint16_t *periods = binn_map_blob(map, COMMAND_MAPPING_PERIODS_BLOB, &periods_size);
+
+    relay_t *target_relay = controller->relays[relay_num];
+
+    if(target_relay->schedule)
+    {
+        schedule_free(target_relay->schedule);
+    }
+    target_relay->schedule = schedule_create(schedule_id, periods_count, periods);
+}
+
+static void
+handler_command_set_relay_name(binn *map, controller_t *controller)
+{
+    uint8_t relay_num = binn_map_uint8(map, COMMAND_MAPPING_RELAY_NUM);
+    char *relay_name = binn_map_str(map, COMMAND_MAPPING_NAME);
+
+    if(relay_num < controller->relay_count)
+    {
+        relay_set_name(controller->relays[relay_num], relay_name);
+    }
+}
+
+void
+handler_command(int fd, controller_t *controller)
+{
+    struct sockaddr_storage their_addr;
+    socklen_t addr_size;
+    int client_fd;
+
+    addr_size = sizeof(their_addr);
+
+    if((client_fd = accept(fd, (struct sockaddr *) &their_addr, &addr_size)) < 0)
+    {
+        LOG_ERROR("could not accept client: %s", strerror(errno));
+        return;
+    }
+
+    size_t payload_length;
+
+    if(recv(client_fd, &payload_length, sizeof(payload_length), 0) <= 0)
+    {
+        LOG_ERROR("unable to receive header: %s", strerror(errno));
+        return;
+    }
+
+    void *payload = malloc((payload_length + 1));
+    ssize_t bytes_transferred;
+
+    if((bytes_transferred = recv(client_fd, payload, payload_length, 0)) <= 0)
+    {
+        LOG_ERROR("unable to receive payload: %s", strerror(errno));
+        return;
+    }
+
+    uint8_t command_code = binn_map_uint8(payload, COMMAND_MAPPING_CODE);
+
+    LOG_INFO("received command %d", command_code);
+
+    switch(command_code)
+    {
+        case COMMAND_CODE_GET_TIME:
+            break;
+        case COMMAND_CODE_GET_ID:
+            break;
+        case COMMAND_CODE_SET_NAME:
+            controller_set_name(controller, binn_map_str(payload, COMMAND_MAPPING_NAME));
+            break;
+        case COMMAND_CODE_GET_NAME:
+            break;
+        case COMMAND_CODE_SET_SCHEDULE:
+            handler_command_set_schedule(payload, controller);
+            break;
+        case COMMAND_CODE_GET_SCHEDULE:
+            break;
+        case COMMAND_CODE_SET_RELAY_NAME:
+            handler_command_set_relay_name(payload, controller);
+            break;
+        case COMMAND_CODE_GET_RELAY_NAME:
+            break;
+    }
+
+    free(payload);
+    close(client_fd);
+}