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Copy modules to the runtime directory in one big read/write if we can instead of this 1 byte at a time thing, significantly improves startup loading time.

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This commit is contained in:
Adam
2011-08-08 00:32:09 -04:00
parent ade92395a0
commit c4da496834
1 changed files with 31 additions and 26 deletions
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src/modulemanager.cpp
+31 -26
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@@ -84,45 +84,50 @@ void ModuleManager::LoadModuleList(std::list<Anope::string> &ModuleList)
static ModuleReturn moduleCopyFile(const Anope::string &name, Anope::string &output)
{
Anope::string input = services_dir + "/modules/" + name + ".so";
FILE *source = fopen(input.c_str(), "rb");
if (!source)
return MOD_ERR_NOEXIST;
int source = open(input.c_str(), O_RDONLY);
if (source == -1)
return MOD_ERR_NOEXIST;
struct stat s;
if (stat(input.c_str(), &s) == -1)
return MOD_ERR_NOEXIST;
else if (!S_ISREG(s.st_mode))
return MOD_ERR_NOEXIST;
char *tmp_output = strdup(output.c_str());
#ifndef _WIN32
int srcfp = mkstemp(tmp_output);
if (srcfp == -1)
#else
if (!mktemp(tmp_output))
#endif
int target = mkstemp(tmp_output);
if (target == -1)
{
free(tmp_output);
fclose(source);
close(source);
return MOD_ERR_FILE_IO;
}
output = tmp_output;
free(tmp_output); // XXX
free(tmp_output);
Log(LOG_DEBUG) << "Runtime module location: " << output;
FILE *target;
#ifndef _WIN32
target = fdopen(srcfp, "w");
#else
target = fopen(output.c_str(), "wb");
#endif
if (!target)
char *buffer = new char[s.st_size];
bool err = false;
for (;;)
{
fclose(source);
return MOD_ERR_FILE_IO;
int read_len = read(source, buffer, s.st_size);
if (read_len <= 0)
break;
int writ_len = write(target, buffer, read_len);
if (writ_len < 0)
{
err = true;
break;
}
}
int ch;
while ((ch = fgetc(source)) != EOF)
fputc(ch, target);
fclose(source);
if (fclose(target))
delete [] buffer;
close(source);
if (close(target) == -1 || err == true)
return MOD_ERR_FILE_IO;
return MOD_ERR_OK;
}