minix3/servers/rs/error.c

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2020-02-21 00:59:27 +05:30
/*
* Changes:
* Mar 07, 2010: Created (Cristiano Giuffrida)
*/
#include "inc.h"
/* A single error entry. */
struct errentry {
int errnum;
char* errstr;
};
/* Initialization errors. */
static struct errentry init_errlist[] = {
{ ENOSYS, "service does not support the requested initialization type" }
};
static const int init_nerr = sizeof(init_errlist) / sizeof(init_errlist[0]);
/* Live update errors. */
static struct errentry lu_errlist[] = {
{ ENOSYS, "service does not support live update" },
{ EINVAL, "service does not support the required state" },
{ EBUSY, "service is not able to prepare for the update now" },
{ EGENERIC, "generic error occurred while preparing for the update" }
};
static const int lu_nerr = sizeof(lu_errlist) / sizeof(lu_errlist[0]);
/*===========================================================================*
* rs_strerror *
*===========================================================================*/
static char * rs_strerror(int errnum, struct errentry *errlist, const int nerr)
{
int i;
for(i=0; i < nerr; i++) {
if(errnum == errlist[i].errnum)
return errlist[i].errstr;
}
return strerror(-errnum);
}
/*===========================================================================*
* init_strerror *
*===========================================================================*/
char * init_strerror(int errnum)
{
return rs_strerror(errnum, init_errlist, init_nerr);
}
/*===========================================================================*
* lu_strerror *
*===========================================================================*/
char * lu_strerror(int errnum)
{
return rs_strerror(errnum, lu_errlist, lu_nerr);
}