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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <cstdio>
#include "log.h"
LOG_SETUP_INDIRECT(".log.control", "$Id$");
#undef LOG
#define LOG LOG_INDIRECT
#include "component.h"
#include "control-file.h"
#include "internal.h"
#include <cstring>
namespace ns_log {
bool
Component::matches(const char *pattern)
{
// Return true if pattern matches the name of this component,
// false otherwise.
int pLen = strlen(pattern);
bool matched;
if (strcmp(pattern, "default") == 0) {
return true;
}
if (strcmp(pattern, ".") == 0) {
return matches("default.");
}
if (pattern[pLen - 1] == '.') {
LOG(spam, "Component::matches -- exact match of '%s' vs name '%s'",
pattern, _name);
matched = (strncmp(pattern, _name, pLen - 1) == 0)
&& _name[pLen - 1] == ':';
} else {
LOG(spam, "Component::matches -- prefix match of '%s' vs name '%s'",
pattern, _name);
matched = strncmp(pattern, _name, pLen) == 0
&& (_name[pLen] == '.' || _name[pLen] == ':');
}
LOG(spam, "Component::matches: Pattern '%s' %s match name '%s'",
pattern, matched ? "did" : "did not", _name);
return matched;
}
void
Component::modifyLevels(const char *levels)
{
// levels is a comma-separated list of level={on|off} pairs.
// the levels string can always be converted to a
// AND bitmask -- for all levels to be removed
// and an OR bitmask -- for all levels to be added
std::string levels_copy(levels);
char *s = &levels_copy[0];
LOG(spam, "Will modify levels for '%.*s' according to \"%s\"",
(int)strcspn(_name, " :\n"), _name, levels);
while (s && *s) {
char *eq = strchr(s, '=');
if (!eq) {
throwInvalid("Missing \"=\" in levels string at \"%s\"", s);
}
*eq = 0;
Logger::LogLevel level = Logger::parseLevel(s);
if (level == Logger::NUM_LOGLEVELS) {
if (strcmp(s, "all") != 0) {
throwInvalid("Level name at \"%s\" is not valid", s);
}
}
*eq = '=';
char *mod = eq + 1;
unsigned int newValue;
if (strcmp(mod, "on") == 0 || strncmp(mod, "on,", 3) == 0) {
s = mod + 2;
newValue = CHARS_TO_UINT(' ', ' ', 'O', 'N');
} else if (strcmp(mod, "off") == 0 || strncmp(mod, "off,", 4) == 0) {
s = mod + 3;
newValue = CHARS_TO_UINT(' ', 'O', 'F', 'F');
} else {
throwInvalid("Invalid modification string at \"%s\", expected "
"\"on\" or \"off\"", mod);
}
if (*s == ',') {
++s;
}
if (level != Logger::NUM_LOGLEVELS) {
_intLevels[level] = newValue;
} else {
for (int n = 0; n != Logger::NUM_LOGLEVELS; ++n) {
_intLevels[n] = newValue;
}
}
}
display();
}
void
Component::display()
{
int nlen = strcspn(_name, ":\n ");
printf("%-30.*s %.*s\n", nlen, _name,
(int)(sizeof(unsigned int) * Logger::NUM_LOGLEVELS), _charLevels);
}
Component::Component(char *s)
: _name(s),
_charLevels(ControlFile::alignLevels(strchr(s, ':') + 2)),
_intLevels(reinterpret_cast<unsigned int *>(_charLevels))
{
if (_charLevels == reinterpret_cast<char *>(4)) {
throwInvalid("Invalid component instantiated");
}
}
} // end namesmace ns_log
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