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main: Move the mainloop into a separate function 

Prepare to have the application wait for the USB device to come
back. This will be done by moving the code around and then having
a simple for loop.
This commit is contained in:
Holger Hans Peter Freyther 2011-10-09 20:02:45 +02:00 committed by Harald Welte
parent 56b8045e67
commit 943d7d28dc
1 changed files with 32 additions and 23 deletions
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55
host/main.c
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@ -42,7 +42,6 @@
#include <osmocom/core/gsmtap_util.h>
#include <osmocom/core/utils.h>
static struct libusb_device_handle *devh;
static struct apdu_split *as;
static struct gsmtap_inst *g_gti;
@ -135,14 +134,37 @@ static const struct option opts[] = {
{ NULL, 0, 0, 0 }
};
static void run_mainloop(struct libusb_device_handle *devh)
{
unsigned int msg_count, byte_count = 0;
char buf[16*265];
int xfer_len;
int rc;
printf("Entering main loop\n");
while (1) {
rc = libusb_bulk_transfer(devh, SIMTRACE_IN_EP, buf, sizeof(buf), &xfer_len, 100000);
if (rc < 0 && rc != LIBUSB_ERROR_TIMEOUT) {
fprintf(stderr, "BULK IN transfer error; rc=%d\n", rc);
return;
}
if (xfer_len > 0) {
//printf("URB: %s\n", osmo_hexdump(buf, rc));
process_usb_msg(buf, xfer_len);
msg_count++;
byte_count += xfer_len;
}
}
}
int main(int argc, char **argv)
{
char buf[16*265];
char *gsmtap_host = "127.0.0.1";
int rc, c, ret = 1;
int rc;
int c, ret = 1;
int skip_atr = 0;
int xfer_len;
unsigned int msg_count, byte_count = 0;
struct libusb_device_handle *devh;
print_welcome();
@ -179,6 +201,10 @@ int main(int argc, char **argv)
}
gsmtap_source_add_sink(g_gti);
as = apdu_split_init(&apdu_out_cb, NULL);
if (!as)
goto release_exit;
devh = libusb_open_device_with_vid_pid(NULL, SIMTRACE_USB_VENDOR, SIMTRACE_USB_PRODUCT);
if (!devh) {
fprintf(stderr, "can't open USB device\n");
@ -191,24 +217,7 @@ int main(int argc, char **argv)
goto close_exit;
}
as = apdu_split_init(&apdu_out_cb, NULL);
if (!as)
goto release_exit;
printf("Entering main loop\n");
while (1) {
rc = libusb_bulk_transfer(devh, SIMTRACE_IN_EP, buf, sizeof(buf), &xfer_len, 100000);
if (rc < 0 && rc != LIBUSB_ERROR_TIMEOUT) {
fprintf(stderr, "BULK IN transfer error; rc=%d\n", rc);
goto release_exit;
}
if (xfer_len > 0) {
//printf("URB: %s\n", osmo_hexdump(buf, rc));
process_usb_msg(buf, xfer_len);
msg_count++;
byte_count += xfer_len;
}
}
run_mainloop(devh);
ret = 0;
release_exit: