janwas
15e8d9a0b3
- validators now WARN_RETURN as well (rationale documented in lib_errors.h) - got rid of some CHECK_ERR (try to avoid multiple errors for the same underlying problem) - H_DEREF now first checks if handle is invalid already and returns that if so; avoids the need for a RETURN_ERR before it. This was SVN commit r3799.
79 lines
1.4 KiB
C++
Executable File
79 lines
1.4 KiB
C++
Executable File
#include "precompiled.h"
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#include <map>
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#include <string>
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#include "lib.h"
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#include "res/file/file.h"
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#include <fam.h>
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static FAMConnection fc;
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static bool initialized = false;
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static std::map<intptr_t, std::string> dirs;
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// for atexit
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static void fam_deinit()
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{
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FAMClose(&fc);
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}
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LibError dir_add_watch(const char* const n_full_path, intptr_t* const watch)
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{
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if(!initialized)
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{
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CHECK_ERR(FAMOpen2(&fc, "lib_res"));
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initialized = true;
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atexit(fam_deinit);
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}
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FAMRequest req;
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if(FAMMonitorDirectory(&fc, n_full_path, &req, (void*)0) < 0)
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{
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*watch = -1;
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debug_warn("res_watch_dir failed!");
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WARN_RETURN(ERR_FAIL); // no way of getting error code?
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}
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*watch = (intptr_t)req.reqnum;
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dirs[*watch] = n_full_path;
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return ERR_OK;
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}
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LibError dir_cancel_watch(const intptr_t watch)
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{
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if(!initialized)
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WARN_RETURN(ERR_LOGIC);
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FAMRequest req;
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req.reqnum = (int)watch;
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RETURN_ERR(FAMCancelMonitor(&fc, &req));
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return ERR_OK;
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}
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int dir_get_changed_file(char* fn)
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{
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if(!initialized)
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WARN_RETURN(ERR_LOGIC);
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FAMEvent e;
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while(FAMPending(&fc) > 0)
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{
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if(FAMNextEvent(&fc, &e) >= 0)
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{
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if (e.code == FAMChanged || e.code == FAMCreated || e.code == FAMDeleted)
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{
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char n_path[PATH_MAX];
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const char* dir = dirs[e.fr.reqnum].c_str();
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snprintf(n_path, PATH_MAX, "%s%c%s", dir, DIR_SEP, e.filename);
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RETURN_ERR(file_make_portable_path(n_path, fn));
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return ERR_OK;
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}
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}
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}
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return ERR_AGAIN; // NOWARN
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}
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