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Use FileName::lastModified() intead of stat() in DepTable

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This patch removes explicit calls to stat() in the DepTable code. The
original motivation was to get read of a stat() invokation where the
error condition was not checked (spotted by coverity).
This commit is contained in:
Jean-Marc Lasgouttes 2017-03-10 11:23:55 +01:00
parent b8c0891427
commit 591f5780e4
1 changed files with 7 additions and 12 deletions
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19
src/DepTable.cpp
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@ -19,8 +19,6 @@
#include "support/lstrings.h"
#include "support/lyxtime.h"
#include <sys/stat.h>
#include <fstream>
using namespace std;
@ -41,13 +39,11 @@ void DepTable::insert(FileName const & f, bool upd)
if (deplist.find(f) == deplist.end()) {
dep_info di;
di.crc_prev = 0;
if (upd) {
if (upd && f.exists()) {
LYXERR(Debug::DEPEND, " CRC...");
di.crc_cur = f.checksum();
LYXERR(Debug::DEPEND, "done.");
struct stat f_info;
stat(f.toFilesystemEncoding().c_str(), &f_info);
di.mtime_cur = long(f_info.st_mtime);
di.mtime_cur = f.lastModified();
} else {
di.crc_cur = 0;
di.mtime_cur = 0;
@ -66,25 +62,24 @@ void DepTable::update()
DepList::iterator itr = deplist.begin();
while (itr != deplist.end()) {
FileName const & fn = itr->first;
dep_info &di = itr->second;
struct stat f_info;
if (stat(itr->first.toFilesystemEncoding().c_str(), &f_info) == 0) {
if (di.mtime_cur == f_info.st_mtime) {
if (fn.exists()) {
if (di.mtime_cur == fn.lastModified()) {
di.crc_prev = di.crc_cur;
LYXERR(Debug::DEPEND, itr->first << " same mtime");
} else {
di.crc_prev = di.crc_cur;
LYXERR(Debug::DEPEND, itr->first << " CRC... ");
di.crc_cur = itr->first.checksum();
di.crc_cur = fn.checksum();
LYXERR(Debug::DEPEND, "done");
}
} else {
// file doesn't exist
// remove stale files - if it's re-created, it
// will be re-inserted by deplog.
LYXERR(Debug::DEPEND, itr->first
<< " doesn't exist. removing from DepTable.");
LYXERR(Debug::DEPEND, fn << " doesn't exist. removing from DepTable.");
DepList::iterator doomed = itr++;
deplist.erase(doomed);
continue;