[build] check for pread(), pwrite(), splice()

SConstruct

@@ -445,13 +445,15 @@ if 1:
 		'port_create',
 		'posix_fadvise',
 		'prctl',
+		'pread',
+		'pwrite',
 		'select',
 		'send_file',
 		'sendfile',
 		'sendfile64',
 		'sigaction',
 		'signal',
-		'socket',
+		'splice',
 		'srandom',
 		'stat',
 		'strchr',

configure.ac

@@ -1512,12 +1512,15 @@ AC_CHECK_FUNCS([\
   pipe2 \
   poll \
   port_create \
+  pread \
+  pwrite \
   select \
   send_file \
   sendfile \
   sendfile64 \
   sigaction \
   signal \
+  splice \
   srandom \
   strerror_r \
   timegm \

src/CMakeLists.txt

@@ -186,6 +186,7 @@ check_function_exists(poll HAVE_POLL)
 check_function_exists(port_create HAVE_PORT_CREATE)
 check_function_exists(prctl HAVE_PRCTL)
 check_function_exists(pread HAVE_PREAD)
+check_function_exists(pwrite HAVE_PWRITE)
 check_function_exists(posix_fadvise HAVE_POSIX_FADVISE)
 check_function_exists(select HAVE_SELECT)
 check_function_exists(sendfile HAVE_SENDFILE)
@@ -195,6 +196,7 @@ check_function_exists(sendfilev HAVE_SENDFILEV)
 check_function_exists(sigaction HAVE_SIGACTION)
 check_function_exists(signal HAVE_SIGNAL)
 check_function_exists(sigtimedwait HAVE_SIGTIMEDWAIT)
+check_function_exists(splice HAVE_SPLICE)
 check_function_exists(srandom HAVE_SRANDOM)
 check_function_exists(strerror_r HAVE_STRERROR_R)
 check_function_exists(strptime HAVE_STRPTIME)

src/chunk.c

@@ -1160,7 +1160,7 @@ ssize_t
 chunkqueue_write_chunk_to_pipe (const int fd, chunkqueue * const restrict cq, log_error_st * const restrict errh)
 {
     /*(note: expects non-empty cq->first)*/
-  #ifdef SPLICE_F_NONBLOCK /* splice() temp files to pipe on Linux */
+  #ifdef HAVE_SPLICE /* splice() temp files to pipe on Linux */
     chunk * const c = cq->first;
     if (c->type == FILE_CHUNK) {
         loff_t abs_offset = c->offset;

src/config.h.cmake

@@ -140,6 +140,7 @@
 #cmakedefine  HAVE_PORT_CREATE
 #cmakedefine  HAVE_PRCTL
 #cmakedefine  HAVE_PREAD
+#cmakedefine  HAVE_PWRITE
 #cmakedefine  HAVE_POSIX_FADVISE
 #cmakedefine  HAVE_SELECT
 #cmakedefine  HAVE_SENDFILE
@@ -149,6 +150,7 @@
 #cmakedefine  HAVE_SIGACTION
 #cmakedefine  HAVE_SIGNAL
 #cmakedefine  HAVE_SIGTIMEDWAIT
+#cmakedefine  HAVE_SPLICE
 #cmakedefine  HAVE_STRERROR_R
 #cmakedefine  HAVE_STRPTIME
 #cmakedefine  HAVE_SYSLOG

src/meson.build

@@ -137,9 +137,10 @@ conf_data.set('HAVE_PATHCONF', compiler.has_function('pathconf', args: defs))
 conf_data.set('HAVE_PIPE2', compiler.has_function('pipe2', args: defs))
 conf_data.set('HAVE_POLL', compiler.has_function('poll', args: defs))
 conf_data.set('HAVE_PORT_CREATE', compiler.has_function('port_create', args: defs))
+conf_data.set('HAVE_POSIX_FADVISE', compiler.has_function('posix_fadvise', args: defs))
 conf_data.set('HAVE_PRCTL', compiler.has_function('prctl', args: defs))
 conf_data.set('HAVE_PREAD', compiler.has_function('pread', args: defs))
-conf_data.set('HAVE_POSIX_FADVISE', compiler.has_function('posix_fadvise', args: defs))
+conf_data.set('HAVE_PWRITE', compiler.has_function('pwrite', args: defs))
 conf_data.set('HAVE_SELECT', compiler.has_function('select', args: defs))
 conf_data.set('HAVE_SENDFILE', compiler.has_function('sendfile', args: defs))
 conf_data.set('HAVE_SEND_FILE', compiler.has_function('send_file', args: defs))
@@ -148,6 +149,7 @@ conf_data.set('HAVE_SENDFILEV', compiler.has_function('sendfilev', args: defs))
 conf_data.set('HAVE_SIGACTION', compiler.has_function('sigaction', args: defs))
 conf_data.set('HAVE_SIGNAL', compiler.has_function('signal', args: defs))
 conf_data.set('HAVE_SIGTIMEDWAIT', compiler.has_function('sigtimedwait', args: defs))
+conf_data.set('HAVE_SPLICE', compiler.has_function('splice', args: defs))
 conf_data.set('HAVE_SRANDOM', compiler.has_function('srandom', args: defs))
 conf_data.set('HAVE_STRERROR_R', compiler.has_function('strerror_r', args: defs))
 conf_data.set('HAVE_STRPTIME', compiler.has_function('strptime', args: defs))