mirror of
https://github.com/netfun2000/lcd4linux.git
synced 2026-02-27 09:44:34 +08:00
[lcd4linux @ 2005-05-08 04:32:43 by reinelt]
CodingStyle added and applied git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@547 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
This commit is contained in:
reinelt
509
lcd4linux.c
509
lcd4linux.c
@@ -1,4 +1,4 @@
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/* $Id: lcd4linux.c,v 1.77 2005/03/30 04:57:50 reinelt Exp $
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/* $Id: lcd4linux.c,v 1.78 2005/05/08 04:32:44 reinelt Exp $
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*
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* LCD4Linux
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*
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@@ -23,6 +23,9 @@
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*
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*
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* $Log: lcd4linux.c,v $
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* Revision 1.78 2005/05/08 04:32:44 reinelt
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* CodingStyle added and applied
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*
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* Revision 1.77 2005/03/30 04:57:50 reinelt
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* Evaluator speedup: use bsearch for finding functions and variables
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*
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@@ -390,289 +393,291 @@
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#define PIDFILE "/var/run/lcd4linux.pid"
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static char *release = "LCD4Linux " VERSION;
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static char *release = "LCD4Linux " VERSION;
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static char *copyright = "Copyright (C) 2005 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>";
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static char **my_argv;
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extern char* output;
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extern char *output;
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int got_signal=0;
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int got_signal = 0;
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static void usage(void)
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{
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printf ("%s\n", release);
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printf ("%s\n", copyright);
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printf ("usage: lcd4linux [-h]\n");
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printf (" lcd4linux [-l]\n");
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printf (" lcd4linux [-c key=value] [-i] [-f config-file] [-v]\n");
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printf (" lcd4linux [-c key=value] [-F] [-f config-file] [-o output-file] [-q] [-v]\n");
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printf("%s\n", release);
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printf("%s\n", copyright);
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printf("usage: lcd4linux [-h]\n");
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printf(" lcd4linux [-l]\n");
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printf(" lcd4linux [-c key=value] [-i] [-f config-file] [-v]\n");
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printf(" lcd4linux [-c key=value] [-F] [-f config-file] [-o output-file] [-q] [-v]\n");
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}
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static void interactive_mode (void)
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static void interactive_mode(void)
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{
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char line[1024];
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void *tree;
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RESULT result = {0, 0, 0, NULL};
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printf("\neval> ");
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for(fgets(line, 1024, stdin); !feof(stdin); fgets(line, 1024, stdin)) {
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if (line[strlen(line)-1]=='\n') line[strlen(line)-1]='\0';
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if (strlen(line)>0) {
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if (Compile(line, &tree)!=-1) {
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Eval (tree, &result);
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if (result.type == R_NUMBER) {
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printf ("%g\n", R2N(&result));
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} else if (result.type == R_STRING) {
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printf ("'%s'\n", R2S(&result));
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} else if (result.type == (R_NUMBER|R_STRING)) {
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printf ("'%s' (%g)\n", R2S(&result), R2N(&result));
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} else {
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printf ("internal error: unknown result type %d\n", result.type);
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char line[1024];
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void *tree;
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RESULT result = { 0, 0, 0, NULL };
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printf("\neval> ");
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for (fgets(line, 1024, stdin); !feof(stdin); fgets(line, 1024, stdin)) {
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if (line[strlen(line) - 1] == '\n')
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line[strlen(line) - 1] = '\0';
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if (strlen(line) > 0) {
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if (Compile(line, &tree) != -1) {
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Eval(tree, &result);
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if (result.type == R_NUMBER) {
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printf("%g\n", R2N(&result));
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} else if (result.type == R_STRING) {
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printf("'%s'\n", R2S(&result));
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} else if (result.type == (R_NUMBER | R_STRING)) {
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printf("'%s' (%g)\n", R2S(&result), R2N(&result));
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} else {
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printf("internal error: unknown result type %d\n", result.type);
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}
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DelResult(&result);
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}
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DelTree(tree);
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}
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DelResult (&result);
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}
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DelTree(tree);
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printf("eval> ");
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}
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printf("eval> ");
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}
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printf ("\n");
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printf("\n");
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}
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void handler (int signal)
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void handler(int signal)
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{
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debug ("got signal %d", signal);
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got_signal=signal;
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debug("got signal %d", signal);
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got_signal = signal;
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}
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int main (int argc, char *argv[])
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int main(int argc, char *argv[])
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{
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char *cfg = "/etc/lcd4linux.conf";
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char *display, *driver, *layout;
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char section[32];
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int c;
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int quiet = 0;
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int interactive = 0;
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int pid;
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char *cfg = "/etc/lcd4linux.conf";
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char *display, *driver, *layout;
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char section[32];
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int c;
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int quiet = 0;
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int interactive = 0;
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int pid;
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/* save arguments for restart */
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my_argv = malloc(sizeof(char*)*(argc+1));
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for (c = 0; c < argc; c++) {
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my_argv[c] = strdup(argv[c]);
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}
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my_argv[c] = NULL;
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/* save arguments for restart */
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my_argv = malloc(sizeof(char *) * (argc + 1));
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for (c = 0; c < argc; c++) {
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my_argv[c] = strdup(argv[c]);
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}
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my_argv[c] = NULL;
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running_foreground = 0;
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running_background = 0;
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while ((c=getopt (argc, argv, "c:Ff:hilo:qv"))!=EOF) {
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running_foreground = 0;
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running_background = 0;
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switch (c) {
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case 'c':
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if (cfg_cmd (optarg)<0) {
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fprintf (stderr, "%s: illegal argument -c '%s'\n", argv[0], optarg);
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while ((c = getopt(argc, argv, "c:Ff:hilo:qv")) != EOF) {
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switch (c) {
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case 'c':
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if (cfg_cmd(optarg) < 0) {
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fprintf(stderr, "%s: illegal argument -c '%s'\n", argv[0], optarg);
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exit(2);
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}
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break;
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case 'F':
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running_foreground++;
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break;
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case 'f':
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cfg = optarg;
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break;
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case 'h':
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usage();
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exit(0);
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case 'i':
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interactive++;
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break;
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case 'l':
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printf("%s\n", release);
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printf("%s\n", copyright);
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drv_list();
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exit(0);
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case 'o':
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output = optarg;
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break;
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case 'q':
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quiet++;
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break;
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case 'v':
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verbose_level++;
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break;
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default:
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exit(2);
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}
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}
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if (optind < argc) {
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fprintf(stderr, "%s: illegal option %s\n", argv[0], argv[optind]);
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exit(2);
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}
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break;
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case 'F':
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running_foreground++;
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break;
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case 'f':
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cfg=optarg;
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break;
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case 'h':
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usage();
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exit(0);
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case 'i':
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interactive++;
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break;
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case 'l':
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printf ("%s\n", release);
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printf ("%s\n", copyright);
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drv_list();
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exit(0);
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case 'o':
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output=optarg;
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break;
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case 'q':
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quiet++;
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break;
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case 'v':
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verbose_level++;
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break;
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default:
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exit(2);
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}
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}
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if (optind < argc) {
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fprintf (stderr, "%s: illegal option %s\n", argv[0], argv[optind]);
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exit(2);
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}
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/* do not fork in interactive mode */
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if (interactive) {
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running_foreground=1;
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}
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info ("Version " VERSION " starting");
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if (!running_foreground && (my_argv[0]==NULL || my_argv[0][0]!='/')) {
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info ("invoked without full path; restart may not work!");
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}
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if (cfg_init(cfg)==-1)
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exit (1);
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if (plugin_init()==-1)
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exit (1);
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display=cfg_get(NULL, "Display", NULL);
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if (display==NULL || *display=='\0') {
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error ("missing 'Display' entry in %s!", cfg_source());
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exit (1);
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}
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qprintf(section, sizeof(section), "Display:%s", display);
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free(display);
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driver=cfg_get(section, "Driver", NULL);
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if (driver==NULL || *driver=='\0') {
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error ("missing '%s.Driver' entry in %s!", section, cfg_source());
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exit (1);
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}
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if (!running_foreground) {
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pid_t i;
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int fd;
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debug ("going background...");
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i=fork();
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if (i<0) {
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error ("fork() failed: %s", strerror(errno));
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exit (1);
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}
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if (i!=0) exit (0);
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/* ignore nasty signals */
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signal(SIGINT, SIG_IGN);
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signal(SIGQUIT, SIG_IGN);
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/* chdir("/") */
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if (chdir("/")!=0) {
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error ("chdir(\"/\") failed: %s", strerror(errno));
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exit (1);
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}
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/* we want full control over permissions */
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umask (0);
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/* detach stdin */
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if (freopen("/dev/null", "r", stdin)==NULL) {
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error ("freopen (/dev/null) failed: %s", strerror(errno));
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exit (1);
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}
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/* detach stdout and stderr */
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fd=open("/dev/null", O_WRONLY, 0666);
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if (fd==-1) {
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error ("open (/dev/null) failed: %s", strerror(errno));
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exit (1);
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}
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fflush(stdout);
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fflush(stderr);
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dup2(fd, STDOUT_FILENO);
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dup2(fd, STDERR_FILENO);
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close(fd);
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/* create PID file */
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if ((pid = pid_init(PIDFILE)) != 0) {
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error ("lcd4linux already running as process %d", pid);
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exit (1);
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/* do not fork in interactive mode */
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if (interactive) {
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running_foreground = 1;
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}
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|
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/* now we are a daemon */
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running_background=1;
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}
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|
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/* go into interactive mode before display initialization */
|
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if (interactive >= 2) {
|
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interactive_mode();
|
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pid_exit(PIDFILE);
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cfg_exit();
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exit (0);
|
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}
|
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|
||||
/* check the conf to see if quiet startup is wanted */
|
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if (!quiet) {
|
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cfg_number(NULL, "Quiet", 0, 0, 1, &quiet);
|
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}
|
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|
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debug ("initializing driver %s", driver);
|
||||
if (drv_init(section, driver, quiet)==-1) {
|
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pid_exit(PIDFILE);
|
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exit (1);
|
||||
}
|
||||
free(driver);
|
||||
|
||||
/* go into interactive mode (display has been initialized) */
|
||||
if (interactive >= 1) {
|
||||
interactive_mode();
|
||||
info("Version " VERSION " starting");
|
||||
if (!running_foreground && (my_argv[0] == NULL || my_argv[0][0] != '/')) {
|
||||
info("invoked without full path; restart may not work!");
|
||||
}
|
||||
|
||||
if (cfg_init(cfg) == -1)
|
||||
exit(1);
|
||||
|
||||
if (plugin_init() == -1)
|
||||
exit(1);
|
||||
|
||||
display = cfg_get(NULL, "Display", NULL);
|
||||
if (display == NULL || *display == '\0') {
|
||||
error("missing 'Display' entry in %s!", cfg_source());
|
||||
exit(1);
|
||||
}
|
||||
|
||||
qprintf(section, sizeof(section), "Display:%s", display);
|
||||
free(display);
|
||||
driver = cfg_get(section, "Driver", NULL);
|
||||
if (driver == NULL || *driver == '\0') {
|
||||
error("missing '%s.Driver' entry in %s!", section, cfg_source());
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if (!running_foreground) {
|
||||
pid_t i;
|
||||
int fd;
|
||||
debug("going background...");
|
||||
i = fork();
|
||||
if (i < 0) {
|
||||
error("fork() failed: %s", strerror(errno));
|
||||
exit(1);
|
||||
}
|
||||
if (i != 0)
|
||||
exit(0);
|
||||
|
||||
/* ignore nasty signals */
|
||||
signal(SIGINT, SIG_IGN);
|
||||
signal(SIGQUIT, SIG_IGN);
|
||||
|
||||
/* chdir("/") */
|
||||
if (chdir("/") != 0) {
|
||||
error("chdir(\"/\") failed: %s", strerror(errno));
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* we want full control over permissions */
|
||||
umask(0);
|
||||
|
||||
/* detach stdin */
|
||||
if (freopen("/dev/null", "r", stdin) == NULL) {
|
||||
error("freopen (/dev/null) failed: %s", strerror(errno));
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* detach stdout and stderr */
|
||||
fd = open("/dev/null", O_WRONLY, 0666);
|
||||
if (fd == -1) {
|
||||
error("open (/dev/null) failed: %s", strerror(errno));
|
||||
exit(1);
|
||||
}
|
||||
fflush(stdout);
|
||||
fflush(stderr);
|
||||
dup2(fd, STDOUT_FILENO);
|
||||
dup2(fd, STDERR_FILENO);
|
||||
close(fd);
|
||||
|
||||
/* create PID file */
|
||||
if ((pid = pid_init(PIDFILE)) != 0) {
|
||||
error("lcd4linux already running as process %d", pid);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* now we are a daemon */
|
||||
running_background = 1;
|
||||
}
|
||||
|
||||
/* go into interactive mode before display initialization */
|
||||
if (interactive >= 2) {
|
||||
interactive_mode();
|
||||
pid_exit(PIDFILE);
|
||||
cfg_exit();
|
||||
exit(0);
|
||||
}
|
||||
|
||||
/* check the conf to see if quiet startup is wanted */
|
||||
if (!quiet) {
|
||||
cfg_number(NULL, "Quiet", 0, 0, 1, &quiet);
|
||||
}
|
||||
|
||||
debug("initializing driver %s", driver);
|
||||
if (drv_init(section, driver, quiet) == -1) {
|
||||
pid_exit(PIDFILE);
|
||||
exit(1);
|
||||
}
|
||||
free(driver);
|
||||
|
||||
/* go into interactive mode (display has been initialized) */
|
||||
if (interactive >= 1) {
|
||||
interactive_mode();
|
||||
drv_quit(quiet);
|
||||
pid_exit(PIDFILE);
|
||||
cfg_exit();
|
||||
exit(0);
|
||||
}
|
||||
|
||||
/* check for new-style layout */
|
||||
layout = cfg_get(NULL, "Layout", NULL);
|
||||
if (layout == NULL || *layout == '\0') {
|
||||
error("missing 'Layout' entry in %s!", cfg_source());
|
||||
exit(1);
|
||||
}
|
||||
|
||||
layout_init(layout);
|
||||
free(layout);
|
||||
|
||||
debug("starting main loop");
|
||||
|
||||
/* now install our own signal handler */
|
||||
signal(SIGHUP, handler);
|
||||
signal(SIGINT, handler);
|
||||
signal(SIGQUIT, handler);
|
||||
signal(SIGTERM, handler);
|
||||
|
||||
while (got_signal == 0) {
|
||||
struct timespec delay;
|
||||
if (timer_process(&delay) < 0)
|
||||
break;
|
||||
nanosleep(&delay, NULL);
|
||||
}
|
||||
|
||||
debug("leaving main loop");
|
||||
|
||||
drv_quit(quiet);
|
||||
pid_exit(PIDFILE);
|
||||
cfg_exit();
|
||||
exit (0);
|
||||
}
|
||||
plugin_exit();
|
||||
timer_exit();
|
||||
|
||||
/* check for new-style layout */
|
||||
layout=cfg_get(NULL, "Layout", NULL);
|
||||
if (layout==NULL || *layout=='\0') {
|
||||
error ("missing 'Layout' entry in %s!", cfg_source());
|
||||
exit (1);
|
||||
}
|
||||
|
||||
layout_init(layout);
|
||||
free(layout);
|
||||
|
||||
debug ("starting main loop");
|
||||
|
||||
/* now install our own signal handler */
|
||||
signal(SIGHUP, handler);
|
||||
signal(SIGINT, handler);
|
||||
signal(SIGQUIT, handler);
|
||||
signal(SIGTERM, handler);
|
||||
|
||||
while (got_signal==0) {
|
||||
struct timespec delay;
|
||||
if (timer_process(&delay)<0) break;
|
||||
nanosleep(&delay, NULL);
|
||||
}
|
||||
|
||||
debug ("leaving main loop");
|
||||
|
||||
drv_quit(quiet);
|
||||
pid_exit(PIDFILE);
|
||||
cfg_exit();
|
||||
plugin_exit();
|
||||
timer_exit();
|
||||
|
||||
if (got_signal==SIGHUP) {
|
||||
long fd;
|
||||
debug ("restarting...");
|
||||
/* close all files on exec */
|
||||
for (fd=sysconf(_SC_OPEN_MAX); fd>2; fd--) {
|
||||
int flag;
|
||||
if ((flag=fcntl(fd,F_GETFD,0))!=-1)
|
||||
fcntl(fd,F_SETFD,flag|FD_CLOEXEC);
|
||||
if (got_signal == SIGHUP) {
|
||||
long fd;
|
||||
debug("restarting...");
|
||||
/* close all files on exec */
|
||||
for (fd = sysconf(_SC_OPEN_MAX); fd > 2; fd--) {
|
||||
int flag;
|
||||
if ((flag = fcntl(fd, F_GETFD, 0)) != -1)
|
||||
fcntl(fd, F_SETFD, flag | FD_CLOEXEC);
|
||||
}
|
||||
execv(my_argv[0], my_argv);
|
||||
error("execv() failed: %s", strerror(errno));
|
||||
exit(1);
|
||||
}
|
||||
execv (my_argv[0], my_argv);
|
||||
error ("execv() failed: %s", strerror(errno));
|
||||
exit(1);
|
||||
}
|
||||
|
||||
for(c=0;my_argv[c]!=NULL;c++) {
|
||||
free(my_argv[c]);
|
||||
}
|
||||
free(my_argv);
|
||||
|
||||
exit (0);
|
||||
for (c = 0; my_argv[c] != NULL; c++) {
|
||||
free(my_argv[c]);
|
||||
}
|
||||
free(my_argv);
|
||||
|
||||
exit(0);
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user