From f6da3aa6cc0915f48e849e1c2cad2ed872362754 Mon Sep 17 00:00:00 2001 From: Mathieu Desnoyers Date: Sat, 19 Nov 2011 11:08:56 -0500 Subject: [PATCH] Add missing patient_write.c Signed-off-by: Mathieu Desnoyers --- snprintf/patient_write.c | 81 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 snprintf/patient_write.c diff --git a/snprintf/patient_write.c b/snprintf/patient_write.c new file mode 100644 index 00000000..b6620cb2 --- /dev/null +++ b/snprintf/patient_write.c @@ -0,0 +1,81 @@ +/* + * Copyright (C) 2009 Pierre-Marc Fournier + * Copyright (C) 2011 Mathieu Desnoyers + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* write() */ +#include + +/* send() */ +#include +#include + +#include + +#include + +/* + * This write is patient because it restarts if it was incomplete. + */ + +ssize_t patient_write(int fd, const void *buf, size_t count) +{ + const char *bufc = (const char *) buf; + int result; + + for(;;) { + result = write(fd, bufc, count); + if (result == -1 && errno == EINTR) { + continue; + } + if (result <= 0) { + return result; + } + count -= result; + bufc += result; + + if (count == 0) { + break; + } + } + + return bufc-(const char *)buf; +} + +ssize_t patient_send(int fd, const void *buf, size_t count, int flags) +{ + const char *bufc = (const char *) buf; + int result; + + for(;;) { + result = send(fd, bufc, count, flags); + if (result == -1 && errno == EINTR) { + continue; + } + if (result <= 0) { + return result; + } + count -= result; + bufc += result; + + if (count == 0) { + break; + } + } + + return bufc - (const char *) buf; +} -- 2.34.1