pcs_startup.c

unix 下用pro*c tuxedo 开发的东西

/*
*	File name		: Pcs_Startup.c
*	Purpose			: Startup necessary 
*	Author			: Mr. Zhujingkun
*	Date Created	: 200004,01
*	Version			: Version 1.0
*	Environment		: SCO UNIX 5.0.5
*	Portability		: UNIX Platform
*	Warnings		: no
*	Called Functions: When system startup
*/

#include "stdlib.h"
#include "stdio.h"
#include "unistd.h"
#include "Pcs_Startup.h"
#include "my_api.h"

void main()
{
	char cProcessFullPathName[MAX_LINE_LEN+1];  //Name with the full path
	char cProcessName[MAX_LINE_LEN+1];  //Not contain path information
	char cCommand[500], cDescription[500];
	FILE *hProcList;
	int iRet;  //Return value of fork()
	int iCurrNumber;  //Record the current Process position during the whole

	sprintf( cCommand, "rm %s\n", STARTUP_PROCESS_ID_LIST );
	system( cCommand );

	hProcList = fopen( STARTUP_PROCESS_LIST, "r" );
	if( hProcList == NULL )
	{
		sprintf( cDescription, "Cc_Startup.x: Cannot open file: %s,The file may not exist!", STARTUP_PROCESS_LIST);
		ErrorLog( cDescription );
		exit(-1);
	}
	
	iCurrNumber=0;
	while( myapi_ReadALine( cProcessFullPathName, hProcList ) )
	{
		if( cProcessFullPathName[0] == '#' ) continue;
		if( cProcessFullPathName[0] == NULL ) continue;

		//Now I find a ProcessName(with the full path)
		GetArgv0( cProcessName, cProcessFullPathName );
		iRet = fork();
		if( iRet == 0 )  //I'm child
		{
			//The process forked has no argument.
			execl( cProcessFullPathName, cProcessName, NULL );
			exit(0);
		}
		else if( iRet == -1 )  //Error, cannot create process
		{
			ErrorLog( "LOG_ERROR: Pcs_Startup.x: Cannot create sub_process: YSSMFile!\n" );
		}
		else  //iRet is the child Process ID, I'm in parent. 
		{
			ProcIDLog(iRet);
			printf("The Process ID of %s is: %i\n", cProcessName, iRet);
		}
		iCurrNumber++;
		if(iCurrNumber >= TOTAL_PROCESS_NUMBER ) break;
		
	}
	fclose( hProcList );
	exit(0);
}