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#include <cstring>
#include <string>
#include <stdlib.h>
#include <stdarg.h>
#include <mutex>
#include "capture_utility.h"
constexpr const char* kCaptureLayerEnvVar = "SLANG_CAPTURE_LAYER";
constexpr const char* kCaptureLayerLogLevel = "SLANG_CAPTURE_LOG_LEVEL";
namespace SlangCapture
{
static thread_local unsigned int g_logLevel = LogLevel::Silent;
static bool getEnvironmentVariable(const char* name, std::string& out)
{
#ifdef _WIN32
char* envVar = nullptr;
size_t sz = 0;
if (_dupenv_s(&envVar, &sz, name) == 0 && envVar != nullptr)
{
out = envVar;
free(envVar);
}
#else
if (const char* envVar = std::getenv(name))
{
out = envVar;
}
#endif
return out.empty() == false;
}
bool isCaptureLayerEnabled()
{
std::string envVarStr;
if(getEnvironmentVariable(kCaptureLayerEnvVar, envVarStr))
{
if (envVarStr == "1")
{
return true;
}
}
return false;
}
void setLogLevel()
{
// We only want to set the log level once
if (g_logLevel != LogLevel::Silent)
{
return;
}
std::string envVarStr;
if (getEnvironmentVariable(kCaptureLayerLogLevel, envVarStr))
{
char* end = nullptr;
unsigned int logLevel = std::strtol(envVarStr.c_str(), &end, 10);
if (end && (*end == 0))
{
g_logLevel = std::min((unsigned int)(LogLevel::Verbose), logLevel);
return;
}
}
}
void slangCaptureLog(LogLevel logLevel, const char* fmt, ...)
{
if (logLevel > g_logLevel)
{
return;
}
va_list args;
va_start(args, fmt);
vfprintf(stdout, fmt, args);
va_end(args);
}
}
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