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common error constants

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This commit is contained in:
Maxim Devaev
2024-03-28 17:17:22 +02:00
parent d64077c2d5
commit a21f527bce
14 changed files with 85 additions and 39 deletions
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17
src/libs/capture.c
View File

@@ -41,6 +41,7 @@
#include <linux/v4l2-controls.h>
#include "types.h"
#include "errors.h"
#include "tools.h"
#include "array.h"
#include "logging.h"
@@ -179,7 +180,7 @@ int us_capture_open(us_capture_s *cap) {
run->open_error_reported = -errno; // Don't confuse it with __LINE__
US_LOG_PERROR("No access to capture device");
}
goto tmp_error;
goto error_no_device;
}
_LOG_DEBUG("Opening capture device ...");
@@ -197,7 +198,7 @@ int us_capture_open(us_capture_s *cap) {
run->open_error_reported = line;
_LOG_ERROR("No signal from source");
}
goto tmp_error;
goto error_no_signal;
}
}
@@ -241,9 +242,13 @@ int us_capture_open(us_capture_s *cap) {
_LOG_INFO("Capturing started");
return 0;
tmp_error:
error_no_device:
us_capture_close(cap);
return -2;
return US_ERROR_NO_DEVICE;
error_no_signal:
us_capture_close(cap);
return US_ERROR_NO_DATA;
error:
run->open_error_reported = 0;
@@ -305,7 +310,7 @@ int us_capture_hwbuf_grab(us_capture_s *cap, us_capture_hwbuf_s **hw) {
// или эвент V4L2. Обработка эвентов более приоритетна, чем кадров.
// - Если есть новые фреймы, то пропустить их все, пока не закончатся и вернуть
// самый-самый свежий, содержащий при этом валидные данные.
// - Если таковых не нашлось, вернуть -2.
// - Если таковых не нашлось, вернуть US_ERROR_NO_DATA.
// - Ошибка -1 возвращается при любых сбоях.
if (_capture_wait_buffer(cap) < 0) {
@@ -392,7 +397,7 @@ int us_capture_hwbuf_grab(us_capture_s *cap, us_capture_hwbuf_s **hw) {
if (buf_got) {
break; // Process any latest valid frame
} else if (broken) {
return -2; // If we have only broken frames on this capture session
return US_ERROR_NO_DATA; // If we have only broken frames on this capture session
}
}
_LOG_PERROR("Can't grab HW buffer");

19
src/libs/drm/drm.c
View File

@@ -38,6 +38,7 @@
#include <libdrm/drm.h>
#include "../types.h"
#include "../errors.h"
#include "../tools.h"
#include "../logging.h"
#include "../frame.h"
@@ -98,7 +99,7 @@ int us_drm_open(us_drm_s *drm, const us_capture_s *cap) {
switch (_drm_check_status(drm)) {
case 0: break;
case -2: goto unplugged;
case US_ERROR_NO_DEVICE: goto unplugged;
default: goto error;
}
@@ -143,7 +144,7 @@ int us_drm_open(us_drm_s *drm, const us_capture_s *cap) {
const uint hz = (stub > 0 ? 0 : cap->run->hz);
switch (_drm_find_sink(drm, width, height, hz)) {
case 0: break;
case -2: goto unplugged;
case US_ERROR_NO_DEVICE: goto unplugged;
default: goto error;
}
if ((stub == 0) && (width != run->mode.hdisplay || height < run->mode.vdisplay)) {
@@ -179,7 +180,7 @@ unplugged:
run->unplugged_reported = true;
}
us_drm_close(drm);
return -2;
return US_ERROR_NO_DEVICE;
}
void us_drm_close(us_drm_s *drm) {
@@ -245,7 +246,7 @@ int us_drm_dpms_power_off(us_drm_s *drm) {
assert(drm->run->fd >= 0);
switch (_drm_check_status(drm)) {
case 0: break;
case -2: return 0; // Unplugged, nice
case US_ERROR_NO_DEVICE: return 0; // Unplugged, nice
// Во время переключения DPMS монитор моргает один раз состоянием disconnected,
// а потом почему-то снова оказывается connected. Так что просто считаем,
// что отсоединенный монитор на этом этапе - это нормально.
@@ -262,7 +263,7 @@ int us_drm_wait_for_vsync(us_drm_s *drm) {
switch (_drm_check_status(drm)) {
case 0: break;
case -2: return -2;
case US_ERROR_NO_DEVICE: return US_ERROR_NO_DEVICE;
default: return -1;
}
_drm_ensure_dpms_power(drm, true);
@@ -317,7 +318,7 @@ int us_drm_expose_stub(us_drm_s *drm, us_drm_stub_e stub, const us_capture_s *ca
switch (_drm_check_status(drm)) {
case 0: break;
case -2: return -2;
case US_ERROR_NO_DEVICE: return US_ERROR_NO_DEVICE;
default: return -1;
}
_drm_ensure_dpms_power(drm, true);
@@ -381,7 +382,7 @@ int us_drm_expose_dma(us_drm_s *drm, const us_capture_hwbuf_s *hw) {
switch (_drm_check_status(drm)) {
case 0: break;
case -2: return -2;
case US_ERROR_NO_DEVICE: return US_ERROR_NO_DEVICE;
default: return -1;
}
_drm_ensure_dpms_power(drm, true);
@@ -434,7 +435,7 @@ static int _drm_check_status(us_drm_s *drm) {
goto error;
}
_LOG_DEBUG("Current display status: %c", status_ch);
return (status_ch == 'd' ? -2 : 0);
return (status_ch == 'd' ? US_ERROR_NO_DEVICE : 0);
error:
US_CLOSE_FD(run->status_fd);
@@ -613,7 +614,7 @@ done:
unplugged:
drmModeFreeResources(res);
return -2;
return US_ERROR_NO_DEVICE;
}
static drmModeModeInfo *_find_best_mode(drmModeConnector *conn, uint width, uint height, float hz) {

27
src/libs/errors.h Normal file
View File

@@ -0,0 +1,27 @@
/*****************************************************************************
# #
# uStreamer - Lightweight and fast MJPEG-HTTP streamer. #
# #
# Copyright (C) 2018-2024 Maxim Devaev <mdevaev@gmail.com> #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <https://www.gnu.org/licenses/>. #
# #
*****************************************************************************/
#pragma once
#define US_ERROR_COMMON -1
#define US_ERROR_NO_DEVICE -2
#define US_ERROR_NO_DATA -3

9
src/libs/memsink.c
View File

@@ -33,6 +33,7 @@
#include <sys/mman.h>
#include "types.h"
#include "errors.h"
#include "tools.h"
#include "logging.h"
#include "frame.h"
@@ -168,7 +169,7 @@ int us_memsink_server_put(us_memsink_s *sink, const us_frame_s *frame, bool *key
if (frame->used > sink->data_size) {
US_LOG_ERROR("%s-sink: Can't put frame: is too big (%zu > %zu)",
sink->name, frame->used, sink->data_size);
return 0; // -2
return 0;
}
if (us_flock_timedwait_monotonic(sink->fd, 1) == 0) {
@@ -213,7 +214,7 @@ int us_memsink_client_get(us_memsink_s *sink, us_frame_s *frame, bool *key_reque
if (us_flock_timedwait_monotonic(sink->fd, sink->timeout) < 0) {
if (errno == EWOULDBLOCK) {
return -2;
return US_ERROR_NO_DATA;
}
US_LOG_PERROR("%s-sink: Can't lock memory", sink->name);
return -1;
@@ -222,7 +223,7 @@ int us_memsink_client_get(us_memsink_s *sink, us_frame_s *frame, bool *key_reque
int retval = 0;
if (sink->mem->magic != US_MEMSINK_MAGIC) {
retval = -2; // Not updated
retval = US_ERROR_NO_DATA; // Not updated
goto done;
}
if (sink->mem->version != US_MEMSINK_VERSION) {
@@ -236,7 +237,7 @@ int us_memsink_client_get(us_memsink_s *sink, us_frame_s *frame, bool *key_reque
sink->mem->last_client_ts = us_get_now_monotonic();
if (sink->mem->id == sink->last_readed_id) {
retval = -2; // Not updated
retval = US_ERROR_NO_DATA; // Not updated
goto done;
}

2
src/libs/tc358743.c
View File

@@ -58,7 +58,7 @@ int us_tc358743_xioctl_get_audio_hz(int fd, uint *audio_hz) {
US_MEMSET_ZERO(ctl);
ctl.id = TC358743_CID_AUDIO_SAMPLING_RATE;
if (us_xioctl(fd, VIDIOC_G_CTRL, &ctl) < 0) {
return -2;
return -1;
}
*audio_hz = ctl.value;
return 0;