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log warning if posix h4 read/write takes longer than 10 ms

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This commit is contained in:
Matthias Ringwald 2016-01-14 11:41:40 +01:00
parent 5b9b590f58
commit 838e7f1bb2
1 changed files with 16 additions and 0 deletions
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16
platform/posix/src/hci_transport_h4_posix.c
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@ -222,6 +222,8 @@ static int h4_send_packet(uint8_t packet_type, uint8_t * packet, int size){
if (hci_transport_h4->ds == NULL) return -1;
if (hci_transport_h4->uart_fd == 0) return -1;
uint32_t start = run_loop_get_time_ms();
// store packet type before actual data and increase size
char *data = (char*) packet;
size++;
@ -230,12 +232,19 @@ static int h4_send_packet(uint8_t packet_type, uint8_t * packet, int size){
while (size > 0) {
int bytes_written = write(hci_transport_h4->uart_fd, data, size);
if (bytes_written < 0) {
log_info("usleep(5000)");
usleep(5000);
continue;
}
data += bytes_written;
size -= bytes_written;
}
uint32_t end = run_loop_get_time_ms();
if (end - start > 10){
log_info("h4_send_packet: write took %u ms", end - start);
}
return 0;
}
@ -305,6 +314,8 @@ static int h4_process(struct data_source *ds) {
if (hci_transport_h4->uart_fd == 0) return -1;
int read_now = bytes_to_read;
uint32_t start = run_loop_get_time_ms();
// read up to bytes_to_read data in
ssize_t bytes_read = read(hci_transport_h4->uart_fd, &hci_packet[read_pos], read_now);
@ -312,6 +323,11 @@ static int h4_process(struct data_source *ds) {
if (bytes_read < 0) {
return bytes_read;
}
uint32_t end = run_loop_get_time_ms();
if (end - start > 10){
log_info("h4_process: read took %u ms", end - start);
}
bytes_to_read -= bytes_read;
read_pos += bytes_read;