tst_memutils.c: Add tst_print_meminfo()

Link: https://lore.kernel.org/ltp/[email protected]/ Reviewed-by: Petr Vorel <[email protected]> Signed-off-by: Wei Gao <[email protected]> [ pvorel: use fprintf(), add TINFO message ] Signed-off-by: Petr Vorel <[email protected]>
linux-test-project · Dec 18, 2023 · dddc06b · dddc06b
1 parent d6340f0
commit dddc06b
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diff --git a/include/tst_memutils.h b/include/tst_memutils.h
@@ -58,4 +58,6 @@ void tst_enable_oom_protection(pid_t pid);
  */
 void tst_disable_oom_protection(pid_t pid);
 
+#define TST_PRINT_MEMINFO() safe_print_file(__FILE__, __LINE__, "/proc/meminfo")
+
 #endif /* TST_MEMUTILS_H__ */
diff --git a/include/tst_safe_macros.h b/include/tst_safe_macros.h
@@ -21,6 +21,7 @@
 #include <dirent.h>
 #include <grp.h>
 
+#include "safe_stdio_fn.h"
 #include "safe_macros_fn.h"
 #include "tst_cmd.h"
 
@@ -671,4 +672,6 @@ int safe_sysinfo(const char *file, const int lineno, struct sysinfo *info);
 #define SAFE_SYSINFO(info) \
 	safe_sysinfo(__FILE__, __LINE__, (info))
 
+void safe_print_file(const char *file, const int lineno, char *path);
+
 #endif /* SAFE_MACROS_H__ */
diff --git a/lib/tst_safe_macros.c b/lib/tst_safe_macros.c
@@ -610,3 +610,18 @@ int safe_msync(const char *file, const int lineno, void *addr,
 
 	return rval;
 }
+
+void safe_print_file(const char *file, const int lineno, char *path)
+{
+	FILE *pfile;
+	char line[PATH_MAX];
+
+	tst_res(TINFO, "=== %s ===", path);
+
+	pfile = safe_fopen(file, lineno, NULL, path, "r");
+
+	while (fgets(line, sizeof(line), pfile))
+		fprintf(stderr, "%s", line);
+
+	safe_fclose(file, lineno, NULL, pfile);
+}