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examples: add example app for marks

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This commit is contained in:
Christian Hergert
2019-06-03 11:39:56 -07:00
parent 3a98938aa4
commit dbb6b9143f
4 changed files with 88 additions and 2 deletions
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7
src/libsysprof-capture/sysprof-capture-writer.c
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@ -426,8 +426,8 @@ sysprof_capture_writer_new_from_fd (int fd,
g_assert (fd != -1);
g_assert (buffer_size % _sysprof_getpagesize() == 0);
if (ftruncate (fd, 0) != 0)
return NULL;
/* This is only useful on files, memfd, etc */
ftruncate (fd, 0);
self = g_new0 (SysprofCaptureWriter, 1);
self->ref_count = 1;
@ -1287,6 +1287,9 @@ sysprof_capture_writer_new_from_env (gsize buffer_size)
if (!(fdstr = g_getenv ("SYSPROF_TRACE_FD")))
return NULL;
/* Make sure the clock is initialized */
sysprof_clock_init ();
if (!(fd = atoi (fdstr)))
return NULL;