mirror of
https://github.com/cjdelisle/cjdns
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51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/* vim: set expandtab ts=4 sw=4: */
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/*
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* You may redistribute this program and/or modify it under the terms of
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* the GNU General Public License as published by the Free Software Foundation,
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* either version 3 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "io/Writer.h"
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#include "io/FileWriter.h"
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#include "util/Identity.h"
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struct FileWriter_context {
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struct Writer generic;
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FILE* writeTo;
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Identity
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};
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/** @see Writer->write() */
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static int write(struct Writer* writer, const void* toWrite, unsigned long length)
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{
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struct FileWriter_context* context = Identity_check((struct FileWriter_context*) writer);
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size_t written = fwrite(toWrite, 1, length, context->writeTo);
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writer->bytesWritten += written;
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return written - length;
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}
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/** @see ArrayWriter.h */
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struct Writer* FileWriter_new(FILE* writeTo, struct Allocator* allocator)
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{
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struct FileWriter_context* context = Allocator_clone(allocator, (&(struct FileWriter_context) {
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.generic = {
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.write = write
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},
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.writeTo = writeTo
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}));
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Identity_set(context);
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return &context->generic;
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}
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