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Diffstat (limited to 'altosui/libaltos/libaltos.c')
-rw-r--r--altosui/libaltos/libaltos.c97
1 files changed, 81 insertions, 16 deletions
diff --git a/altosui/libaltos/libaltos.c b/altosui/libaltos/libaltos.c
index a3796ee3..48e00a44 100644
--- a/altosui/libaltos/libaltos.c
+++ b/altosui/libaltos/libaltos.c
@@ -49,6 +49,22 @@ altos_fini(void)
{
}
+static struct altos_error last_error;
+
+static void
+altos_set_last_error(int code, char *string)
+{
+ last_error.code = code;
+ strncpy(last_error.string, string, sizeof (last_error.string) -1);
+ last_error.string[sizeof(last_error.string)-1] = '\0';
+}
+
+PUBLIC void
+altos_get_last_error(struct altos_error *error)
+{
+ *error = last_error;
+}
+
#ifdef DARWIN
#undef USE_POLL
@@ -96,6 +112,12 @@ struct altos_file {
int in_read;
};
+static void
+altos_set_last_posix_error(void)
+{
+ altos_set_last_error(errno, strerror(errno));
+}
+
PUBLIC struct altos_file *
altos_open(struct altos_device *device)
{
@@ -103,12 +125,18 @@ altos_open(struct altos_device *device)
int ret;
struct termios term;
- if (!file)
+ if (!file) {
+ altos_set_last_posix_error();
return NULL;
+ }
+
+// altos_set_last_error(12, "yeah yeah, failed again");
+// free(file);
+// return NULL;
file->fd = open(device->path, O_RDWR | O_NOCTTY);
if (file->fd < 0) {
- perror(device->path);
+ altos_set_last_posix_error();
free(file);
return NULL;
}
@@ -117,7 +145,7 @@ altos_open(struct altos_device *device)
#else
file->out_fd = open(device->path, O_RDWR | O_NOCTTY);
if (file->out_fd < 0) {
- perror(device->path);
+ altos_set_last_posix_error();
close(file->fd);
free(file);
return NULL;
@@ -125,7 +153,7 @@ altos_open(struct altos_device *device)
#endif
ret = tcgetattr(file->fd, &term);
if (ret < 0) {
- perror("tcgetattr");
+ altos_set_last_posix_error();
close(file->fd);
#ifndef USE_POLL
close(file->out_fd);
@@ -143,7 +171,7 @@ altos_open(struct altos_device *device)
#endif
ret = tcsetattr(file->fd, TCSAFLUSH, &term);
if (ret < 0) {
- perror("tcsetattr");
+ altos_set_last_posix_error();
close(file->fd);
#ifndef USE_POLL
close(file->out_fd);
@@ -195,8 +223,10 @@ altos_flush(struct altos_file *file)
#else
ret = write (file->out_fd, file->out_data, file->out_used);
#endif
- if (ret < 0)
+ if (ret < 0) {
+ altos_set_last_posix_error();
return -errno;
+ }
if (ret) {
memmove(file->out_data, file->out_data + ret,
file->out_used - ret);
@@ -248,7 +278,7 @@ altos_fill(struct altos_file *file, int timeout)
fd[1].events = POLLIN;
ret = poll(fd, 2, timeout);
if (ret < 0) {
- perror("altos_getchar");
+ altos_set_last_posix_error();
return LIBALTOS_ERROR;
}
if (ret == 0)
@@ -261,7 +291,7 @@ altos_fill(struct altos_file *file, int timeout)
{
ret = read(file->fd, file->in_data, USB_BUF_SIZE);
if (ret < 0) {
- perror("altos_getchar");
+ altos_set_last_posix_error();
return LIBALTOS_ERROR;
}
file->in_read = 0;
@@ -700,8 +730,10 @@ altos_bt_open(struct altos_bt_device *device)
if (!file)
goto no_file;
file->fd = socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM);
- if (file->fd < 0)
+ if (file->fd < 0) {
+ altos_set_last_posix_error();
goto no_sock;
+ }
addr.rc_family = AF_BLUETOOTH;
addr.rc_channel = 1;
@@ -711,7 +743,7 @@ altos_bt_open(struct altos_bt_device *device)
(struct sockaddr *)&addr,
sizeof(addr));
if (status < 0) {
- perror("connect");
+ altos_set_last_posix_error();
goto no_link;
}
sleep(1);
@@ -912,6 +944,21 @@ struct altos_file {
OVERLAPPED ov_write;
};
+static void
+altos_set_last_windows_error(void)
+{
+ DWORD error = GetLastError();
+ TCHAR message[1024];
+ FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM,
+ 0,
+ error,
+ 0,
+ message,
+ sizeof (message) / sizeof (TCHAR),
+ NULL);
+ altos_set_last_error(error, message);
+}
+
PUBLIC struct altos_list *
altos_list_start(void)
{
@@ -922,7 +969,7 @@ altos_list_start(void)
list->dev_info = SetupDiGetClassDevs(NULL, "USB", NULL,
DIGCF_ALLCLASSES|DIGCF_PRESENT);
if (list->dev_info == INVALID_HANDLE_VALUE) {
- printf("SetupDiGetClassDevs failed %ld\n", GetLastError());
+ altos_set_last_windows_error();
free(list);
return NULL;
}
@@ -956,6 +1003,7 @@ altos_list_next(struct altos_list *list, struct altos_device *device)
DICS_FLAG_GLOBAL, 0, DIREG_DEV,
KEY_READ);
if (dev_key == INVALID_HANDLE_VALUE) {
+ altos_set_last_windows_error();
printf("cannot open device registry key\n");
continue;
}
@@ -966,6 +1014,7 @@ altos_list_next(struct altos_list *list, struct altos_device *device)
result = RegQueryValueEx(dev_key, "SymbolicName", NULL, NULL,
symbolic, &symbolic_len);
if (result != 0) {
+ altos_set_last_windows_error();
printf("cannot find SymbolicName value\n");
RegCloseKey(dev_key);
continue;
@@ -988,6 +1037,7 @@ altos_list_next(struct altos_list *list, struct altos_device *device)
port, &port_len);
RegCloseKey(dev_key);
if (result != 0) {
+ altos_set_last_windows_error();
printf("failed to get PortName\n");
continue;
}
@@ -1003,6 +1053,7 @@ altos_list_next(struct altos_list *list, struct altos_device *device)
sizeof(friendlyname),
&friendlyname_len))
{
+ altos_set_last_windows_error();
printf("Failed to get friendlyname\n");
continue;
}
@@ -1015,8 +1066,10 @@ altos_list_next(struct altos_list *list, struct altos_device *device)
return 1;
}
result = GetLastError();
- if (result != ERROR_NO_MORE_ITEMS)
+ if (result != ERROR_NO_MORE_ITEMS) {
+ altos_set_last_windows_error();
printf ("SetupDiEnumDeviceInfo failed error %d\n", (int) result);
+ }
return 0;
}
@@ -1035,8 +1088,10 @@ altos_queue_read(struct altos_file *file)
return LIBALTOS_SUCCESS;
if (!ReadFile(file->handle, file->in_data, USB_BUF_SIZE, &got, &file->ov_read)) {
- if (GetLastError() != ERROR_IO_PENDING)
+ if (GetLastError() != ERROR_IO_PENDING) {
+ altos_set_last_windows_error();
return LIBALTOS_ERROR;
+ }
file->pend_read = TRUE;
} else {
file->pend_read = FALSE;
@@ -1061,8 +1116,10 @@ altos_wait_read(struct altos_file *file, int timeout)
ret = WaitForSingleObject(file->ov_read.hEvent, timeout);
switch (ret) {
case WAIT_OBJECT_0:
- if (!GetOverlappedResult(file->handle, &file->ov_read, &got, FALSE))
+ if (!GetOverlappedResult(file->handle, &file->ov_read, &got, FALSE)) {
+ altos_set_last_windows_error();
return LIBALTOS_ERROR;
+ }
file->pend_read = FALSE;
file->in_read = 0;
file->in_used = got;
@@ -1106,15 +1163,20 @@ altos_flush(struct altos_file *file)
while (used) {
if (!WriteFile(file->handle, data, used, &put, &file->ov_write)) {
- if (GetLastError() != ERROR_IO_PENDING)
+ if (GetLastError() != ERROR_IO_PENDING) {
+ altos_set_last_windows_error();
return LIBALTOS_ERROR;
+ }
ret = WaitForSingleObject(file->ov_write.hEvent, INFINITE);
switch (ret) {
case WAIT_OBJECT_0:
- if (!GetOverlappedResult(file->handle, &file->ov_write, &put, FALSE))
+ if (!GetOverlappedResult(file->handle, &file->ov_write, &put, FALSE)) {
+ altos_set_last_windows_error();
return LIBALTOS_ERROR;
+ }
break;
default:
+ altos_set_last_windows_error();
return LIBALTOS_ERROR;
}
}
@@ -1142,6 +1204,7 @@ altos_open(struct altos_device *device)
0, NULL, OPEN_EXISTING,
FILE_FLAG_OVERLAPPED, NULL);
if (file->handle == INVALID_HANDLE_VALUE) {
+ altos_set_last_windows_error();
free(file);
return NULL;
}
@@ -1157,6 +1220,7 @@ altos_open(struct altos_device *device)
dcbSerialParams.DCBlength = sizeof(dcbSerialParams);
if (!GetCommState(file->handle, &dcbSerialParams)) {
+ altos_set_last_windows_error();
CloseHandle(file->handle);
free(file);
return NULL;
@@ -1166,6 +1230,7 @@ altos_open(struct altos_device *device)
dcbSerialParams.StopBits = ONESTOPBIT;
dcbSerialParams.Parity = NOPARITY;
if (!SetCommState(file->handle, &dcbSerialParams)) {
+ altos_set_last_windows_error();
CloseHandle(file->handle);
free(file);
return NULL;
generated by cgit v1.2.3 (git 2.39.1) at 2025-10-15 20:29:39 +0000