src/utils/residentMem.c

#include <config.h> 
#include <string.h> 
#include <stdio.h>
#include <stdlib.h>
#ifdef __sgi
#include <unistd.h>
#endif

#define to_string( s ) # s
#define STR_DEFINE(t, s) t = to_string(s)

/* 
 * returns an estimate of the resident memory size in kB 
 */
double residentMem () {

  FILE* procresults;
  char buf[150];
  char* foo;
  long int myRSS, totRSS;
  char pscommand[150];
  char* psPath;

  STR_DEFINE(psPath, PSCOMMAND );
 
  // null terminated string is one longer....
  strncpy(pscommand, psPath, strlen(psPath)+1);

#ifdef PSTYPE_IS_BSD
  strcat(pscommand, " ax -o rss");
#else
#ifdef PSTYPE_IS_POSIX
  strcat(pscommand, " -ef -o rss");
#else 
  printf("Unknown ps syntax!\n");
#endif
#endif

  printf("doing %s\n", pscommand);

  procresults = popen(pscommand, "r");

  totRSS = 0;
  while (!feof(procresults)) {
    fgets( buf, 150, procresults);
    if (!strcmp(buf, " RSS")) continue;
        
    foo = strtok(buf, " ,;\t");
    myRSS = atoi(foo);
    totRSS += myRSS;
  } 
  pclose(procresults);

#ifdef __sgi
  // Damn IRIX machines uses pages for RSS and pagesize is variable 
  // depending on version of the OS.
  totRSS *= getpagesize() / 1024;
#endif

  return(totRSS);

}
Revision:	2029
Committed:	Tue Feb 15 15:17:01 2005 UTC (19 years, 4 months ago) by gezelter
Content type:	text/plain
File size:	1200 byte(s)
Log Message:	* empty log message *
#	User	Rev	Content
1	gezelter	2024	#include <config.h>
2			#include <string.h>
3			#include <stdio.h>
4	gezelter	2029	#include <stdlib.h>
5			#ifdef __sgi
6			#include <unistd.h>
7			#endif
8	gezelter	2024
9	gezelter	2027	#define to_string( s ) # s
10			#define STR_DEFINE(t, s) t = to_string(s)
11
12	gezelter	2029	/*
13			* returns an estimate of the resident memory size in kB
14			*/
15	gezelter	2024	double residentMem () {
16
17			FILE* procresults;
18			char buf[150];
19			char* foo;
20			long int myRSS, totRSS;
21	gezelter	2026	char pscommand[150];
22	gezelter	2027	char* psPath;
23	gezelter	2024
24	gezelter	2027	STR_DEFINE(psPath, PSCOMMAND );
25	gezelter	2028
26			// null terminated string is one longer....
27			strncpy(pscommand, psPath, strlen(psPath)+1);
28	gezelter	2024
29	gezelter	2029	#ifdef PSTYPE_IS_BSD
30	gezelter	2024	strcat(pscommand, " ax -o rss");
31			#else
32	gezelter	2029	#ifdef PSTYPE_IS_POSIX
33	gezelter	2024	strcat(pscommand, " -ef -o rss");
34	gezelter	2029	#else
35			printf("Unknown ps syntax!\n");
36	gezelter	2024	#endif
37	gezelter	2029	#endif
38	gezelter	2024
39	gezelter	2028	printf("doing %s\n", pscommand);
40
41	gezelter	2024	procresults = popen(pscommand, "r");
42
43			totRSS = 0;
44			while (!feof(procresults)) {
45			fgets( buf, 150, procresults);
46			if (!strcmp(buf, " RSS")) continue;
47
48			foo = strtok(buf, " ,;\t");
49			myRSS = atoi(foo);
50			totRSS += myRSS;
51			}
52			pclose(procresults);
53
54	gezelter	2029	#ifdef __sgi
55			// Damn IRIX machines uses pages for RSS and pagesize is variable
56			// depending on version of the OS.
57			totRSS *= getpagesize() / 1024;
58			#endif
59
60	gezelter	2024	return(totRSS);
61
62			}