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Annotation of OpenXM/src/kxx/ox100start.c, Revision 1.4

1.4     ! takayama    1: /* $OpenXM: OpenXM/src/kxx/ox100start.c,v 1.3 2003/07/21 12:41:21 takayama Exp $ */
1.1       takayama    2: /* Moved from misc-2003/07/cygwin/test.c */
                      3: #include <stdio.h>
                      4: #include <sys/types.h>
                      5: #include <sys/stat.h>
                      6: #include <fcntl.h>
                      7: #include <stdlib.h>
                      8: #include <unistd.h>
                      9: #include <sys/wait.h>
                     10: #include <signal.h>
                     11: #include <ctype.h>
1.2       takayama   12: #include "ox_pathfinder.h"
1.1       takayama   13:
1.2       takayama   14: static void usage(void);
1.1       takayama   15: static int forkExec(char **argv);
1.3       takayama   16: void *sGC_malloc(int size) {
                     17:   return ((void *)malloc(size));
                     18: }
1.1       takayama   19:
1.2       takayama   20: extern char **environ;
1.1       takayama   21:
                     22: main(int argc,char *argv[]) {
                     23:   char *s;
                     24:   char s2[1024];
                     25:   char buf[1024];
                     26:   FILE *fp;
                     27:   char **aaa;
                     28:   char **eee;
                     29:   int i;
                     30:   char *serverName;
                     31:
1.4     ! takayama   32:
1.2       takayama   33:   /*
1.1       takayama   34:        printf("ostype=%s\n",getOStypes());
                     35:        printf("OpenXM_HOME=%s\n",getOpenXM_HOME());
                     36:        printf("sm lib =%s\n",get_sm1_lib_path());
                     37:        printf("k0 lib =%s\n",get_k0_lib_path());
                     38:        printf("ox_asir =%s\n",get_ox_asir_path());
1.2       takayama   39:   */
1.4     ! takayama   40:   ox_pathfinderVerbose(1);
        !            41:
1.1       takayama   42:
                     43:   /* Initialize parameters */
                     44:   serverName = NULL;
                     45:   aaa = NULL;
                     46:
                     47:   for (i=1 ; i<argc; i++) {
                     48:        if (strcmp(argv[i],"-e")==0) {
                     49:          if (aaa == NULL) {
                     50:                fprintf(stderr,"Server is not found or not specified by -oxserver options.\n");
                     51:                exit(1);
                     52:          }
                     53:          aaa = catArgv(aaa,&(argv[i+1]));
                     54:          break;
                     55:        }else if (strcmp(argv[i],"-oxserver")==0) {
                     56:          i++;
                     57:          serverName = argv[i];
                     58:          aaa = getServerEnv(serverName);
                     59:        }else if (strcmp(argv[i],"-nox")==0) {
1.2       takayama   60:          ox_pathfinderNoX(1);
1.1       takayama   61:        }else{
                     62:          fprintf(stderr,"Unknown option.\n");
                     63:          usage();
                     64:          exit(10);
                     65:        }
                     66:   }
                     67:
                     68:   forkExec(aaa);
1.2       takayama   69: }
1.1       takayama   70:
1.2       takayama   71: #define MYFORKCP_SIZE 100
                     72: static int Myforkchildren[MYFORKCP_SIZE];
                     73: static int Myforkcp=0;
                     74: static void myforkwait() {
                     75:   int status;
                     76:   int pid;
                     77:   int i,j;
                     78:   signal(SIGCHLD,SIG_IGN);
                     79:   pid = wait(&status);
                     80:   fprintf(stderr,"Child process %d is exiting.\n",pid);
                     81:   for (i=0; i<Myforkcp; i++) {
                     82:     if (Myforkchildren[i]  == pid) {
                     83:       for (j=i; j<Myforkcp-1; j++) {
                     84:         Myforkchildren[j] = Myforkchildren[j+1];
                     85:       }
                     86:       if (Myforkcp > 0) Myforkcp--;
                     87:     }
                     88:   }
                     89:   signal(SIGCHLD,myforkwait);
1.1       takayama   90: }
                     91:
                     92: static void usage() {
                     93:   fprintf(stderr,"oxstart100 -oxserver xxx [-e args]\n");
                     94:   fprintf(stderr,"Examples: \n");
                     95:   fprintf(stderr,"    oxstart100 -oxserver bin/ox_sm1 -e -reverse -data 3010 --control 3012 -pass 1121343432434 \n");
                     96: }
                     97:
                     98: static int forkExec(char **argv) {
                     99:   int pid;
                    100:   char **eee;
                    101:   int m;
                    102:   m = 0;
                    103:   if (argv == NULL) {
                    104:     fprintf(stderr,"Cannot fork and exec.\n"); return -1;
                    105:   }
                    106:   if ((pid = fork()) > 0) {
                    107:     if (m&2) {
                    108:          /* Do not call singal to turn around a trouble on cygwin. BUG. */
                    109:        }else{
                    110:          signal(SIGCHLD,myforkwait); /* to kill Zombie */
                    111:        }
                    112:        Myforkchildren[Myforkcp++] = pid;
                    113:        if (Myforkcp >= MYFORKCP_SIZE-1) {
                    114:          fprintf(stderr,"Child process table is full.\n");
                    115:          Myforkcp = 0;
                    116:        }
                    117:   }else{
                    118:     /* close the specified files */
                    119:        if (m&1) {
                    120:        sigset_t sss;
                    121:        sigemptyset(&sss);
                    122:        sigaddset(&sss,SIGINT);
                    123:        sigprocmask(SIG_BLOCK,&sss,NULL);
                    124:        }
1.2       takayama  125:        if (ox_pathfinderNoX(-1)) {
1.1       takayama  126:          FILE *null;
                    127:          null = fopen("/dev/null","wb");
                    128:          dup2(fileno(null),1);
                    129:          dup2(fileno(null),2);
                    130:        }
                    131:     execve(argv[0],argv,environ);
                    132:     /* This place will never be reached unless execv fails. */
                    133:     fprintf(stderr,"forkExec fails: ");
                    134:   }
                    135: }
                    136: