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vfs: consider O_NONBLOCK flag while opening UART FD

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This commit is contained in:
Roland Dobai
2018-03-29 14:18:10 +02:00
parent da27816314
commit c55987a3e9
1 changed files with 12 additions and 5 deletions
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17
components/vfs/vfs_uart.c
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@@ -91,15 +91,22 @@ static int uart_open(const char * path, int flags, int mode)
{ {
// this is fairly primitive, we should check if file is opened read only, // this is fairly primitive, we should check if file is opened read only,
// and error out if write is requested // and error out if write is requested
int fd = -1;
if (strcmp(path, "/0") == 0) { if (strcmp(path, "/0") == 0) {
return 0; fd = 0;
} else if (strcmp(path, "/1") == 0) { } else if (strcmp(path, "/1") == 0) {
return 1; fd = 1;
} else if (strcmp(path, "/2") == 0) { } else if (strcmp(path, "/2") == 0) {
return 2; fd = 2;
} } else {
errno = ENOENT; errno = ENOENT;
return -1; return fd;
}
s_non_blocking[fd] = ((flags & O_NONBLOCK) == O_NONBLOCK);
return fd;
} }
static void uart_tx_char(int fd, int c) static void uart_tx_char(int fd, int c)