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/*
** Copyright 2001 Double Precision, Inc. See COPYING for
** distribution information.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <signal.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/stat.h>
#include "pcp.h"
static int compar_times(const void *a, const void *b)
{
const struct PCP_event_time *aa=*(const struct PCP_event_time **)a;
const struct PCP_event_time *bb=*(const struct PCP_event_time **)b;
return (aa->start < bb->start ? -1:
aa->start > bb->start ? 1:
aa->end < bb->end ? -1:
aa->end > bb->end ? 1:0);
}
const struct PCP_event_time **
pcp_add_sort_times(const struct PCP_event_time *t,
unsigned n)
{
const struct PCP_event_time **ptr;
unsigned i;
if (n == 0)
{
errno=EINVAL;
return (NULL);
}
ptr=malloc(n*sizeof(const struct PCP_event_time *));
if (!ptr)
return (NULL);
for (i=0; i<n; i++)
ptr[i]=t+i;
if (n)
qsort(ptr, n, sizeof(*ptr),
compar_times);
for (i=0; i<n; i++)
{
if (ptr[i]->start > ptr[i]->end)
{
free(ptr);
errno=EINVAL;
return (NULL);
}
if (i > 0 && ptr[i-1]->end > ptr[i]->start)
{
free(ptr);
errno=EINVAL;
return (NULL);
}
}
return (ptr);
}
int pcp_read_saveevent(struct PCP_save_event *ae,
char *buf, int bufsize)
{
int n;
if (ae->write_event_func)
return ( ((*ae->write_event_func)
(buf, bufsize, ae->write_event_func_misc_ptr)));
if (!ae->write_event_buf && ae->write_event_fd >= 0)
return ( read(ae->write_event_fd, buf, bufsize));
if (ae->write_event_buf == 0)
{
errno=EIO;
return (-1);
}
for (n=0; n<bufsize && *ae->write_event_buf; n++)
buf[n]= *ae->write_event_buf++;
return (n);
}
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