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spark cVideo: add proc_{get,put} helper functions

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This commit is contained in:
Stefan Seyfried
2012-02-12 10:22:29 +01:00
parent 22f4be6607
commit 96c3ba2bb0
1 changed files with 37 additions and 0 deletions
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37
libspark/video.cpp
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@@ -64,6 +64,43 @@ static pthread_mutex_t stillp_mutex = PTHREAD_MUTEX_INITIALIZER;
/* debugging hacks */
static bool noscart = false;
static int proc_put(const char *path, const char *value, const int len)
{
int ret, ret2;
int pfd = open(path, O_WRONLY);
if (pfd < 0)
return pfd;
ret = write(pfd, value, len);
ret2 = close(pfd);
if (ret2 < 0)
return ret2;
return ret;
}
static int proc_get(const char *path, char *value, const int len)
{
int ret, ret2;
int pfd = open(path, O_RDONLY);
if (pfd < 0)
return pfd;
ret = read(pfd, value, len);
value[len-1] = '\0'; /* make sure string is terminated */
ret2 = close(pfd);
if (ret2 < 0)
return ret2;
return ret;
}
static unsigned int proc_get_hex(const char *path)
{
unsigned int n, ret = 0;
char buf[16];
n = proc_get(path, buf, 16);
if (n > 0)
sscanf(buf, "%x", &ret);
return ret;
}
cVideo::cVideo(int, void *, void *)
{
lt_debug("%s\n", __FUNCTION__);