Great. Thanks for the code update.
On Tue, Jan 25, 2011 at 6:35 PM, Steven L. Seed
<steven.s...@disneyanimation.com> wrote:
> Here is our modified version of the monitor_wacom.c code. His original code
> was checking for the screen saver to go off to load the settings. In our
> case, we want to load the settings whenever the tablet is plugged in, so we
> modified it to listen on the org.freedesktop.Hal.Manager interface for the
> "DeviceAdded" singal.
>
> #include <stdio.h>
> #include <stdlib.h>
> #include <string.h>
> #include <unistd.h>
> #include <time.h>
> #include <assert.h>
>
> void log_msg(const char *msg) {
>
>
> FILE *log_file = fopen("/tmp/monitor_wacom.log", "a");
>
> if (log_file) {
> time_t time_g;
> time(&time_g);
> char date_str[100];
> strcpy(date_str, asctime(localtime(&time_g)));
> date_str[strlen(date_str) - 1] = '\0'; /* get rid of the \n
> */
> fprintf(log_file, "%s : %s\n", date_str, msg);
> }
>
> fclose(log_file);
> }
>
> void run_script(const char *filename) { /* only run xsetwacom lines */
> FILE *script_file = fopen(filename, "r");
>
> if (!script_file) {
> log_msg("Failed to open script (double check your entry in
> Startup Applications). Terminating.");
> exit(1);
> }
>
> char buf[1024];
> char l_buf[1024];
> int count = 0;
> while ((fgets(buf, 1023, script_file))) {
> if (strstr(buf, "xsetwacom")) {
> int r = system(buf);
> if (r != 0) {
> sprintf(buf, "xsetwacom returned error on
> line - %s", buf);
> log_msg(l_buf);
> }
> ++count;
> }
> }
>
> sprintf(l_buf, "Script ran. %d matching lines executed.", count);
>
> log_msg(l_buf);
> }
>
> int main(int argc, char **argv) {
>
> char script_name[1024];
>
> if (argc != 2) {
> log_msg("Script not specified, using .xinitrc");
> strcpy(script_name, ".xinitrc");
> } else {
> strcpy(script_name, argv[1]);
> }
>
> run_script(script_name);
>
> FILE* in = popen("dbus-monitor --system
> type='signal',interface='org.freedesktop.Hal.Manager',member='DeviceAdded'",
> "r");
>
> if (!in) {
> log_msg("Cannot spawn dbus-monitor process. Terminating.");
> return 1;
> }
> while (1) {
> char buf[1024];
> assert(fgets(buf, 1023, in));
>
> if (buf[0] == 's' /* early exit optimization */ &&
> strstr(buf, "DeviceAdded") != NULL) {
> /* resumed */
> log_msg("Device plugged in. Running
> script.");
> run_script(script_name);
> }
> }
> }
>
>
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