Improve flushing for un-managed fp such as stdout; upgrade fmt to 8.0.1

Rao Meng · Rao Meng · commit cb3799c3fa3c · 2021-07-06T08:08:26.000+08:00
diff --git a/fmt b/fmt
@@ -1 +1 @@
-Subproject commit 002bb759ffc2ba03c7167d22cb58291b1b933af4
+Subproject commit d141cdbeb0fb422a3fb7173b285fd38e0d1772dc
diff --git a/fmtlog-inl.h b/fmtlog-inl.h
@@ -293,7 +293,10 @@ class fmtlogDetailT
   }
 
   void flushLogFile() {
-    if (outputFp) fwrite(membuf.data(), 1, membuf.size(), outputFp);
+    if (outputFp) {
+      fwrite(membuf.data(), 1, membuf.size(), outputFp);
+      if (!manageFp) fflush(outputFp);
+    }
     membuf.clear();
     nextFlushTime = (std::numeric_limits<int64_t>::max)();
   }

Original file line number	Diff line number	Diff line change
`@@ -293,7 +293,10 @@ class fmtlogDetailT`
`293`	`293`	`}`
`294`	`294`
`295`	`295`	`void flushLogFile() {`
`296`		`- if (outputFp) fwrite(membuf.data(), 1, membuf.size(), outputFp);`
	`296`	`+ if (outputFp) {`
	`297`	`+ fwrite(membuf.data(), 1, membuf.size(), outputFp);`
	`298`	`+ if (!manageFp) fflush(outputFp);`
	`299`	`+ }`
`297`	`300`	`membuf.clear();`
`298`	`301`	`nextFlushTime = (std::numeric_limits<int64_t>::max)();`
`299`	`302`	`}`