diff options
Diffstat (limited to 'serial.c')
| -rw-r--r-- | serial.c | 30 |
1 files changed, 22 insertions, 8 deletions
@@ -391,14 +391,17 @@ int serialport_write(const unsigned char *buf, unsigned int writecnt) while (writecnt > 0) { #if IS_WINDOWS - WriteFile(sp_fd, buf, writecnt, &tmp, NULL); + if (!WriteFile(sp_fd, buf, writecnt, &tmp, NULL)) { + msg_perr("Serial port write error!\n"); + return 1; + } #else tmp = write(sp_fd, buf, writecnt); -#endif if (tmp == -1) { msg_perr("Serial port write error!\n"); return 1; } +#endif if (!tmp) { msg_pdbg2("Empty write\n"); empty_writes--; @@ -425,14 +428,17 @@ int serialport_read(unsigned char *buf, unsigned int readcnt) while (readcnt > 0) { #if IS_WINDOWS - ReadFile(sp_fd, buf, readcnt, &tmp, NULL); + if (!ReadFile(sp_fd, buf, readcnt, &tmp, NULL)) { + msg_perr("Serial port read error!\n"); + return 1; + } #else tmp = read(sp_fd, buf, readcnt); -#endif if (tmp == -1) { msg_perr("Serial port read error!\n"); return 1; } +#endif if (!tmp) msg_pdbg2("Empty read\n"); readcnt -= tmp; @@ -485,17 +491,21 @@ int serialport_read_nonblock(unsigned char *c, unsigned int readcnt, unsigned in for (i = 0; i < timeout; i++) { msg_pspew("readcnt %u rd_bytes %u\n", readcnt, rd_bytes); #if IS_WINDOWS - ReadFile(sp_fd, c + rd_bytes, readcnt - rd_bytes, &rv, NULL); + if (!ReadFile(sp_fd, c + rd_bytes, readcnt - rd_bytes, &rv, NULL)) { + msg_perr_strerror("Serial port read error: "); + ret = -1; + break; + } msg_pspew("read %lu bytes\n", rv); #else rv = read(sp_fd, c + rd_bytes, readcnt - rd_bytes); msg_pspew("read %zd bytes\n", rv); -#endif if ((rv == -1) && (errno != EAGAIN)) { msg_perr_strerror("Serial port read error: "); ret = -1; break; } +#endif if (rv > 0) rd_bytes += rv; if (rd_bytes == readcnt) { @@ -565,17 +575,21 @@ int serialport_write_nonblock(const unsigned char *buf, unsigned int writecnt, u for (i = 0; i < timeout; i++) { msg_pspew("writecnt %u wr_bytes %u\n", writecnt, wr_bytes); #if IS_WINDOWS - WriteFile(sp_fd, buf + wr_bytes, writecnt - wr_bytes, &rv, NULL); + if (!WriteFile(sp_fd, buf + wr_bytes, writecnt - wr_bytes, &rv, NULL)) { + msg_perr_strerror("Serial port write error: "); + ret = -1; + break; + } msg_pspew("wrote %lu bytes\n", rv); #else rv = write(sp_fd, buf + wr_bytes, writecnt - wr_bytes); msg_pspew("wrote %zd bytes\n", rv); -#endif if ((rv == -1) && (errno != EAGAIN)) { msg_perr_strerror("Serial port write error: "); ret = -1; break; } +#endif if (rv > 0) { wr_bytes += rv; if (wr_bytes == writecnt) { |