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/**
* Copyright (c) 2007-2012, Timothy Stack
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* * Neither the name of Timothy Stack nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <assert.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "grep_proc.hh"
#include "line_buffer.hh"
#include "logfile.hh"
class my_source : public grep_proc_source {
public:
logfile* ms_lf;
my_source(logfile* lf) : ms_lf(lf){};
size_t grep_lines(void)
{
return this->ms_lf->size();
};
void grep_value_for_line(int line, std::string& value_out, int pass)
{
value_out = this->ms_lf->read_line(this->ms_lf->begin() + line);
};
};
class my_sink : public grep_proc_sink {
public:
void grep_match(grep_line_t line, int start, int end)
{
printf("%d - %d:%d\n", (int) line, start, end);
};
};
int
main(int argc, char* argv[])
{
int retval = EXIT_SUCCESS;
auto_fd fd;
fd = open("/tmp/gp.err", O_WRONLY | O_CREAT | O_APPEND, 0666);
dup2(fd, STDERR_FILENO);
fprintf(stderr, "startup\n");
if (argc < 2) {
fprintf(stderr, "error: no file given\n");
} else {
logfile lf(argv[1]);
lf.rebuild_index();
my_source ms(&lf);
my_sink msink;
grep_proc gp("pnp", ms);
gp.start();
gp.set_sink(&msink);
fd_set read_fds;
int maxfd = gp.update_fd_set(read_fds);
while (1) {
fd_set rfds = read_fds;
select(maxfd + 1, &rfds, NULL, NULL, NULL);
gp.check_fd_set(rfds);
if (!FD_ISSET(maxfd, &read_fds))
break;
}
}
return retval;
}
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