3 /* gras.c -- generic functions not fitting anywhere else */
5 /* Copyright (c) 2003, 2004 Martin Quinson. */
6 /* All rights reserved. */
8 /* This program is free software; you can redistribute it and/or modify it
9 * under the terms of the license (GNU LGPL) which comes with this package. */
12 #include "xbt/virtu.h" /* set the XBT virtualization to use GRAS */
13 #include "xbt/module.h" /* xbt_init/exit */
14 #include "xbt/xbt_os_time.h" /* xbt_os_time */
16 #include "Virtu/virtu_interface.h" /* Module mechanism FIXME: deplace&rename */
17 #include "gras_modinter.h" /* module init/exit */
18 #include "amok/amok_modinter.h" /* module init/exit */
19 #include "xbt_modinter.h" /* module init/exit */
22 #include "gras/process.h" /* FIXME: killme and put process_init in modinter */
24 #include "portable.h" /* hexa_*(); signalling stuff */
26 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras,XBT_LOG_ROOT_CAT,"All GRAS categories (cf. section \ref GRAS_API)");
27 static int gras_running_process = 0;
28 #if defined(HAVE_SIGNAL) && defined(HAVE_SIGNAL_H)
29 static void gras_sigusr_handler(int sig) {
30 INFO0("SIGUSR1 received. Display the backtrace");
31 xbt_backtrace_display();
34 static void gras_sigint_handler(int sig) {
35 static double lastone = 0;
36 if (lastone == 0 || xbt_os_time() - lastone > 5) {
37 xbt_backtrace_display();
39 "\nBacktrace displayed because Ctrl-C was pressed. Press again (within 5 sec) to abort the process.\n");
40 lastone = xbt_os_time();
47 void gras_init(int *argc,char **argv) {
49 VERB0("Initialize GRAS");
51 xbt_getpid = &gras_os_getpid;
52 /* First initialize the XBT */
55 /* module registrations:
56 * - declare process specific data we need (without creating them)
58 if (gras_running_process == 0) {
64 * Initialize the process specific stuff
66 gras_process_init(); /* calls procdata_init, which creates process specific data for each module */
69 * Initialize the global stuff if it's not the first process created
71 if (gras_running_process++ == 0) {
76 #if defined(HAVE_SIGNAL) && defined(HAVE_SIGNAL_H)
78 signal(SIGUSR1,gras_sigusr_handler);
80 signal(SIGINT,gras_sigint_handler);
84 /* and then init amok */
88 void gras_exit(void) {
89 INFO0("Exiting GRAS");
93 if (--gras_running_process == 0) {
103 const char *hexa_str(unsigned char *data, int size, int downside) {
104 static char*buff=NULL;
105 static int buffsize=0;
109 if (buffsize<5*(size+1)) {
113 buff=xbt_malloc(buffsize);
125 for (i=begin; 0<=i && i<size ; i+=increment) {
126 if (data[i]<32 || data[i]>126)
127 sprintf(buff+pos,".");
129 sprintf(buff+pos,"%c",data[i]);
132 sprintf(buff+pos,"(");
134 for (i=begin; 0<=i && i<size ; i+=increment) {
135 sprintf(buff+pos,"%02x",data[i]);
138 sprintf(buff+pos,")");
143 void hexa_print(const char*name, unsigned char *data, int size) {
144 printf("%s: %s\n", name,hexa_str(data,size,0));