LCOV - code coverage report
Current view: top level - src/port - noblock.c (source / functions) Hit Total Coverage
Test: PostgreSQL 13devel Lines: 5 14 35.7 %
Date: 2019-11-13 22:07:24 Functions: 1 2 50.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /*-------------------------------------------------------------------------
       2             :  *
       3             :  * noblock.c
       4             :  *    set a file descriptor as blocking or non-blocking
       5             :  *
       6             :  * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
       7             :  * Portions Copyright (c) 1994, Regents of the University of California
       8             :  *
       9             :  * IDENTIFICATION
      10             :  *    src/port/noblock.c
      11             :  *
      12             :  *-------------------------------------------------------------------------
      13             :  */
      14             : 
      15             : #include "c.h"
      16             : 
      17             : #include <fcntl.h>
      18             : 
      19             : 
      20             : /*
      21             :  * Put socket into nonblock mode.
      22             :  * Returns true on success, false on failure.
      23             :  */
      24             : bool
      25       14954 : pg_set_noblock(pgsocket sock)
      26             : {
      27             : #if !defined(WIN32)
      28             :     int         flags;
      29             : 
      30       14954 :     flags = fcntl(sock, F_GETFL);
      31       14954 :     if (flags < 0)
      32           0 :         return false;
      33       14954 :     if (fcntl(sock, F_SETFL, (flags | O_NONBLOCK)) == -1)
      34           0 :         return false;
      35       14954 :     return true;
      36             : #else
      37             :     unsigned long ioctlsocket_ret = 1;
      38             : 
      39             :     /* Returns non-0 on failure, while fcntl() returns -1 on failure */
      40             :     return (ioctlsocket(sock, FIONBIO, &ioctlsocket_ret) == 0);
      41             : #endif
      42             : }
      43             : 
      44             : /*
      45             :  * Put socket into blocking mode.
      46             :  * Returns true on success, false on failure.
      47             :  */
      48             : bool
      49           0 : pg_set_block(pgsocket sock)
      50             : {
      51             : #if !defined(WIN32)
      52             :     int         flags;
      53             : 
      54           0 :     flags = fcntl(sock, F_GETFL);
      55           0 :     if (flags < 0)
      56           0 :         return false;
      57           0 :     if (fcntl(sock, F_SETFL, (flags & ~O_NONBLOCK)) == -1)
      58           0 :         return false;
      59           0 :     return true;
      60             : #else
      61             :     unsigned long ioctlsocket_ret = 0;
      62             : 
      63             :     /* Returns non-0 on failure, while fcntl() returns -1 on failure */
      64             :     return (ioctlsocket(sock, FIONBIO, &ioctlsocket_ret) == 0);
      65             : #endif
      66             : }

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