rt_write_json writes the common system information header of the
rt-test currently executed.
Signed-off-by: Daniel Wagner <dwagner@xxxxxxx>
---
src/include/rt-utils.h | 4 ++
src/lib/rt-utils.c | 96 ++++++++++++++++++++++++++++++++++++++++++
2 files changed, 100 insertions(+)
diff --git a/src/include/rt-utils.h b/src/include/rt-utils.h
index 39ddbd9eae29..36af92b170df 100644
--- a/src/include/rt-utils.h
+++ b/src/include/rt-utils.h
@@ -80,4 +80,8 @@ static inline int64_t calctime(struct timespec t)
return time;
}
+void rt_write_json(const char *filename, int argc, char *argv[],
+ void (*cb)(FILE *, void *),
+ void *data);
+
#endif /* __RT_UTILS.H */
diff --git a/src/lib/rt-utils.c b/src/lib/rt-utils.c
index 321a11b1172d..00907c573d6a 100644
--- a/src/lib/rt-utils.c
+++ b/src/lib/rt-utils.c
@@ -20,6 +20,9 @@
#include <sys/stat.h>
#include <unistd.h>
#include <sys/syscall.h> /* For SYS_gettid definitions */
+#include <sys/utsname.h>
+#include <time.h>
+#include <sys/time.h>
#include "rt-utils.h"
#include "rt-sched.h"
@@ -482,3 +485,96 @@ void disable_trace_mark(void)
{
close_tracemark_fd();
}
+
+static char *get_cmdline(int argc, char *argv[])
+{
+ char *cmdline;
+ int len, i;
+
+ len = 0;
+ for (i = 0; i < argc; i++)
+ len += strlen(argv[i]) + 1;
+
+ cmdline = malloc(len);
+ if (!cmdline)
+ err_exit(ENOMEM, "Could not copy cmdline");
+
+ memset(cmdline, 0, len);
+ for (i = 0; i < argc;) {
+ cmdline = strcat(cmdline, argv[i]);
+ i++;
+ if (i < argc)
+ cmdline = strcat(cmdline, " ");
+ }
+
+ return cmdline;
+}
+
+void rt_write_json(const char *filename, int argc, char *argv[],
+ void (*cb)(FILE *, void *),
+ void *data)
+{
+ unsigned char buf[1];
+ struct utsname uts;
+ struct timeval tv;
+ char tsbuf[64];
+ struct tm *tm;
+ char *cmdline;
+ FILE *f, *s;
+ time_t t;
+ size_t n;
+ int rt = 0;
+
+ if (!filename || !strcmp("-", filename)) {
+ f = stdout;
+ } else {
+ f = fopen(filename, "w");
+ if (!f)
+ err_exit(errno, "Failed to open '%s'\n", filename);
+ }
+
+ cmdline = get_cmdline(argc, argv);
+ if (!cmdline)
+ err_exit(ENOMEM, "get_cmdline()");
+
+
+ gettimeofday(&tv, NULL);
+ t = tv.tv_sec;
+ tm = localtime(&t);
+ /* RFC 2822-compliant date format */
+ strftime(tsbuf, sizeof(tsbuf), "%a, %d %b %Y %T %z", tm);
+
+ s = fopen("/sys/kernel/realtime", "r");
+ if (s) {
+ n = fread(buf, 1, 1, s);
+ if (n == 1 && buf[0] == '1')
+ rt = 1;
+ fclose(s);
+ }
+
+ if (uname(&uts))
+ err_exit(errno, "Could not retrieve system information");
+
+ fprintf(f, "{\n");
+ fprintf(f, " \"file_version\": 1,\n");
+ fprintf(f, " \"cmdline:\": \"%s\",\n", cmdline);
+ fprintf(f, " \"rt_test_version:\": \"%1.2f\",\n", VERSION);
+ fprintf(f, " \"finished\": \"%s\",\n", tsbuf);
+ fprintf(f, " \"sysinfo\": {\n");
+ fprintf(f, " \"sysname\": \"%s\",\n", uts.sysname);
+ fprintf(f, " \"nodename\": \"%s\",\n", uts.nodename);
+ fprintf(f, " \"release\": \"%s\",\n", uts.release);
+ fprintf(f, " \"version\": \"%s\",\n", uts.version);
+ fprintf(f, " \"machine\": \"%s\",\n", uts.machine);
+ fprintf(f, " \"realtime\": %d\n", rt);
+ fprintf(f, " },\n");
+
+ (cb)(f, data);
+
+ fprintf(f, "}\n");
+
+ free(cmdline);
+
+ if (!filename || strcmp("-", filename))
+ fclose(f);
+}
--
2.30.0
