From: Maxim Mamontov <faust.madf@gmail.com>
Date: Sat, 13 Sep 2014 21:57:22 +0000 (+0300)
Subject: Added special function to read/write all data (for TCP).
X-Git-Tag: 2.409~286
X-Git-Url: https://git.stg.codes/stg.git/commitdiff_plain/9bcc50116ad21379a31ab8d65deb36688f2044b3

Added special function to read/write all data (for TCP).
---

diff --git a/stglibs/common.lib/common.cpp b/stglibs/common.lib/common.cpp
index c7c1bf05..5bd66c87 100644
--- a/stglibs/common.lib/common.cpp
+++ b/stglibs/common.lib/common.cpp
@@ -1015,3 +1015,35 @@ if (res == 0) // Timeout
 
 return true;
 }
+
+bool ReadAll(int sd, void * dest, size_t size)
+{
+size_t done = 0;
+char * ptr = static_cast<char *>(dest);
+while (done < size)
+    {
+    if (!WaitPackets(sd))
+        return false;
+    ssize_t res = read(sd, ptr + done, size - done);
+    if (res < 0)
+        return false;
+    if (res == 0)
+        return true;
+    done += res;
+    }
+return true;
+}
+
+bool WriteAll(int sd, const void * source, size_t size)
+{
+size_t done = 0;
+const char * ptr = static_cast<const char *>(source);
+while (done < size)
+    {
+    ssize_t res = write(sd, ptr + done, size - done);
+    if (res <= 0)
+        return false;
+    done += res;
+    }
+return true;
+}
diff --git a/stglibs/common.lib/include/stg/common.h b/stglibs/common.lib/include/stg/common.h
index 94c26a8b..0791f093 100644
--- a/stglibs/common.lib/include/stg/common.h
+++ b/stglibs/common.lib/include/stg/common.h
@@ -139,6 +139,9 @@ int ParseYesNo(const std::string & str, bool * val);
 
 bool WaitPackets(int sd);
 
+bool ReadAll(int sd, void * dest, size_t size);
+bool WriteAll(int sd, const void * source, size_t size);
+
 //-----------------------------------------------------------------------------
 int str2x(const std::string & str, int32_t & x);
 int str2x(const std::string & str, uint32_t & x);