fly316/PX4-Autopilot
7
0
Fork 0
mirror of https://gitee.com/mirrors_PX4/PX4-Autopilot.git synced 2026-10-21 17:33:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

Experimental virtual file support

Browse Source 
QuRT does not have a filesystem, so creating a virtual filesystem
that could be implemented as an in-memory file or a remote file
over fastRPC.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>
This commit is contained in:
Mark Charlebois
2015-05-06 22:12:45 -07:00
parent 35e6822d95
commit 6db77dc8bb
11 changed files with 206 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/drivers/device/vdev_posix.cpp
+28 -4
View File
@@ -40,6 +40,7 @@
#include <px4_posix.h>
#include <px4_time.h>
#include "device.h"
#include "vfile.h"
#include <stdlib.h>
#include <stdio.h>
@@ -85,16 +86,26 @@ inline bool valid_fd(int fd)
return (fd < PX4_MAX_FD && fd >= 0 && filemap[fd] != NULL);
}
int px4_open(const char *path, int flags)
int px4_open(const char *path, int flags, ...)
{
printf("px4_open\n");
VDev *dev = VDev::getDev(path);
int ret = 0;
int i;
mode_t mode;
if (!dev) {
ret = -EINVAL;
if (!dev && (flags & (PX4_F_WRONLY|PX4_F_CREAT)) != 0)
{
va_list p;
va_start(p, flags);
mode = va_arg(p, mode_t);
va_end(p);
// Create the file
warnx("Creating virtual file %s\n", path);
dev = VFile::createFile(path, mode);
}
else {
if (dev) {
for (i=0; i<PX4_MAX_FD; ++i) {
if (filemap[i] == 0) {
filemap[i] = new device::file_t(flags,dev,i);
@@ -108,6 +119,9 @@ int px4_open(const char *path, int flags)
ret = -ENOENT;
}
}
else {
ret = -EINVAL;
}
if (ret < 0) {
px4_errno = -ret;
return -1;
@@ -272,6 +286,11 @@ cleanup:
return count;
}
int px4_fsync(int fd)
{
return 0;
}
void px4_show_devices()
{
VDev::showDevices();
@@ -282,6 +301,11 @@ void px4_show_topics()
VDev::showTopics();
}
void px4_show_files()
{
VDev::showFiles();
}
const char * px4_get_device_names(unsigned int *handle)
{
return VDev::devList(handle);