update log module

src/common/log.h

@@ -45,11 +45,12 @@ namespace paddle_mobile {
     static std::vector<std::string> logs{"NO",      "ERROR ",  "WARNING",
                                          "INFO   ", "DEBUG  ", "DEBUG1 ",
                                          "DEBUG2 ", "DEBUG3 ", "DEBUG4 "};
-
     struct ToLog;
+    struct Print;
 
     struct Print {
         friend struct ToLog;
+
         template <typename T> Print &operator<<(T const &value) {
             buffer_ << value;
             return *this;
@@ -100,6 +101,8 @@ namespace paddle_mobile {
             .str())
 
 #define DLOG                                                                   \
+    if (paddle_mobile::kLOG_DEBUG > paddle_mobile::log_level) {                \
+    } else                                                                     \
     paddle_mobile::ToLog(                                                      \
         paddle_mobile::kLOG_DEBUG,                                             \
         (std::stringstream()                                                   \
@@ -109,6 +112,16 @@ namespace paddle_mobile {
             .str())
 }
 
+#define LOGF(level, format, ...)                                               \
+    if (level > paddle_mobile::log_level) {                                    \
+    } else                                                                     \
+    printf(format, ##__VA_ARGS__)
+
+#define DLOGF(format, ...)                                                     \
+    if (paddle_mobile::kLOG_DEBUG > paddle_mobile::log_level) {                \
+    } else                                                                     \
+    printf(format, ##__VA_ARGS__)
+
 #else
 
 namespace paddle_mobile {
@@ -150,5 +163,10 @@ namespace paddle_mobile {
     if (true) {                                                                \
     } else                                                                     \
     paddle_mobile::ToLog(paddle_mobile::kLOG_DEBUG)
+
+#define LOGF(level, format, ...)
+
+#define DLOGF(format, ...)
 }
+
 #endif

test/unit-test/test_log.cpp

@@ -19,13 +19,19 @@ SOFTWARE.
 #include "common/log.h"
 
 int main() {
-    LOG(paddle_mobile::kLOG_DEBUG) << "test debug"
-                                   << " next log";
+    DLOGF("DASJFDAFJ%d -- %f", 12345, 344.234);
+    LOG(paddle_mobile::kLOG_DEBUG) << "test debug" << " next log";
+
     LOG(paddle_mobile::kLOG_DEBUG1) << "test debug1"
                                     << " next log";
+
     LOG(paddle_mobile::kLOG_DEBUG2) << "test debug2"
                                     << " next log";
+
     DLOG << "test DLOG";
+
+
     LOG(paddle_mobile::kLOG_ERROR) << " error occur !";
+
     return 0;
 }