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Copying log analysis file directly to the SD card during logging

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This commit is contained in:
Lorenz Meier
2012-10-25 15:47:14 +02:00
parent 8e4c45322e
commit 569938e680
2 changed files with 107 additions and 4 deletions
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apps/sdlog/sdlog.c
+51 -3
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@@ -72,6 +72,7 @@ static int deamon_task; /**< Handle of deamon task / thread */
static const int MAX_NO_LOGFOLDER = 999; /**< Maximum number of log folders */
static const char *mountpoint = "/fs/microsd";
static const char *mfile_in = "/etc/logging/logconv.m";
/**
* SD log management function.
@@ -90,10 +91,12 @@ static void usage(const char *reason);
static int file_exist(const char *filename);
static int file_copy(const char* file_old, const char* file_new);
/**
* Print the current status.
*/
static void print_sdlog_status();
static void print_sdlog_status(void);
/**
* Create folder for current logging session.
@@ -181,7 +184,17 @@ int create_logfolder(char* folder_path) {
/* the result is -1 if the folder exists */
if (mkdir_ret == 0) {
/* folder does not exist */
/* folder does not exist, success */
/* now copy the Matlab/Octave file */
char mfile_out[100];
sprintf(mfile_out, "%s/session%04u/run_to_plot_data.m", mountpoint, foldernumber);
int ret = file_copy(mfile_in, mfile_out);
if (!ret) {
warnx("copied m file to %s", mfile_out);
} else {
warnx("failed copying m file from %s to\n %s", mfile_in, mfile_out);
}
break;
} else if (mkdir_ret == -1) {
@@ -379,7 +392,7 @@ int sdlog_thread_main(int argc, char *argv[]) {
* set up poll to block for new data,
* wait for a maximum of 1000 ms (1 second)
*/
const int timeout = 1000;
// const int timeout = 1000;
thread_running = true;
@@ -550,3 +563,38 @@ int file_exist(const char *filename)
return stat(filename, &buffer);
}
int file_copy(const char* file_old, const char* file_new)
{
FILE *source, *target;
source = fopen(file_old, "r");
if( source == NULL )
{
warnx("failed opening input file to copy");
return 1;
}
target = fopen(file_new, "w");
if( target == NULL )
{
fclose(source);
warnx("failed to open output file to copy");
}
char buf[128];
int nread;
while ((nread = fread(buf, sizeof(buf), 1, source)) > 0) {
int ret = fwrite(buf, sizeof(buf), 1, target);
if (ret <= 0) {
warnx("error writing file");
break;
}
}
fclose(source);
fclose(target);
return 0;
}