implement alternative way to get memusage using wait4wait4_rusage

run now forks the benchmark command instead of simply calling exec.
Ressource usage of the benchmark is retrieved with a call to wait4.
But the reported value ru_maxrss differs from values in /proc/<pid>/status.

1 files changed, 0 insertions, 36 deletions

diff --git a/src/exec.c b/src/exec.c
deleted file mode 100644
index 4397992..0000000
--- a/src/exec.c
+++ /dev/null
@@ -1,36 +0,0 @@
-#define _GNU_SOURCE
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-int main(int argc, char* argv[]) {
-	if (argc < 2) {
-		printf("Usage: %s [-p LD_PRELOAD] [-l LD_LIBRARY_PATH] <cmd> [cmd args]\n", argv[0]);
-		printf("\tset LD_PRELOAD to ld_preload and call execvp <cmd> [cmd args]\n");
-		return 1;
-	}
-
-	int i = 1;
-	for (; i < argc; i++) {
-		// Overwrite LD_PRELOAD.
-		if (strncmp(argv[i], "-p", 2) == 0) {
-			setenv("LD_PRELOAD", argv[i+1], 1);
-			i++;
-		// Overwrite LD_LIBRARY_PATH.
-		} else if (strncmp(argv[i], "-l", 2) == 0) {
-			setenv("LD_LIBRARY_PATH", argv[i+1], 1);
-			i++;
-		} else {
-			break;
-		}
-	}
-
-
-	// Run cmd.
-	execvp(argv[i], &argv[i]);
-
-	fprintf(stderr, "executing %s failed\n", argv[i]);
-
-	return 1;
-}