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Code

Prepare the Monitor class for proper inheritance

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This commit is contained in:
Paul Cercueil 2013-07-18 21:32:23 -04:00
parent cc869c07a8
commit f308ed983b
2 changed files with 59 additions and 30 deletions
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72
src/monitor.cpp
View File

@ -10,28 +10,47 @@
#include "monitor.h"
static void * inotify_thd(void *p)
void Monitor::inject_event(bool is_add, const char *path)
{
SDL_UserEvent e = {
.type = SDL_USEREVENT,
.code = (int) is_add,
.data1 = strdup(path),
.data2 = NULL,
};
/* Inject an user event, that will be handled as a "repaint"
* event by the InputManager */
SDL_PushEvent((SDL_Event *) &e);
}
bool Monitor::event_accepted(struct inotify_event &event)
{
/* Don't bother other files than OPKs */
size_t len = strlen(event.name);
return len >= 5 && !strncmp(event.name + len - 4, ".opk", 4);
}
int Monitor::run(void)
{
const char *path = (const char *) p;
int wd, fd;
DEBUG("Starting inotify thread for path %s...\n", path);
DEBUG("Starting inotify thread for path %s...\n", path.c_str());
fd = inotify_init();
if (fd == -1) {
if (fd < 0) {
ERROR("Unable to start inotify\n");
return NULL;
return fd;
}
wd = inotify_add_watch(fd, path, IN_MOVED_FROM | IN_MOVED_TO |
IN_CLOSE_WRITE | IN_DELETE | IN_CREATE);
if (wd == -1) {
wd = inotify_add_watch(fd, path.c_str(), mask);
if (wd < 0) {
ERROR("Unable to add inotify watch\n");
close(fd);
return NULL;
return wd;
}
DEBUG("Starting watching directory %s\n", path);
DEBUG("Starting watching directory %s\n", path.c_str());
for (;;) {
size_t len = sizeof(struct inotify_event) + NAME_MAX + 1;
@ -39,30 +58,29 @@ static void * inotify_thd(void *p)
char buf[256];
read(fd, &event, len);
sprintf(buf, "%s/%s", path, event.name);
sprintf(buf, "%s/%s", path.c_str(), event.name);
/* Don't bother other files than OPKs */
len = strlen(event.name);
if (len < 5 || strncmp(event.name + len - 4, ".opk", 4))
if (!event_accepted(event))
continue;
SDL_UserEvent e = {
.type = SDL_USEREVENT,
.code = (int) (event.mask &
(IN_MOVED_TO | IN_CLOSE_WRITE | IN_CREATE)),
.data1 = strdup(buf),
.data2 = NULL,
};
/* Inject an user event, that will be handled as a "repaint"
* event by the InputManager */
SDL_PushEvent((SDL_Event *) &e);
inject_event(event.mask & (IN_MOVED_TO | IN_CLOSE_WRITE |
IN_CREATE), buf);
}
return 0;
}
Monitor::Monitor(std::string path) : path(path)
static void * inotify_thd(void *p)
{
pthread_create(&thd, NULL, inotify_thd, (void *) path.c_str());
Monitor *monitor = (Monitor *) p;
monitor->run();
return NULL;
}
Monitor::Monitor(std::string path, unsigned int flags) : path(path)
{
mask = flags;
pthread_create(&thd, NULL, inotify_thd, (void *) this);
}
Monitor::~Monitor(void)

17
src/monitor.h
View File

@ -1,17 +1,28 @@
#ifndef __MONITOR_H__
#define __MONITOR_H__
#ifdef ENABLE_INOTIFY
#include <string>
#include <pthread.h>
#include <string>
#include <sys/inotify.h>
class Monitor {
public:
Monitor(std::string path);
~Monitor();
Monitor(std::string path, unsigned int flags = IN_MOVE |
IN_CLOSE_WRITE | IN_DELETE | IN_CREATE);
virtual ~Monitor();
int run(void);
private:
std::string path;
pthread_t thd;
protected:
unsigned int mask;
virtual bool event_accepted(struct inotify_event &event);
virtual void inject_event(bool is_add, const char *path);
};
#endif
#endif /* __MONITOR_H__ */