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Language/OS - Multiplatform Resource Library
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LANGUAGE OS.iso
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p4
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p4-1_2b.lha
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p4-1.2b
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alog
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alog.c
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C/C++ Source or Header
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1993-01-18
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7KB
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269 lines
#include <stdio.h>
#if !defined(SYMMETRY_PTX) && !defined(NCUBE)
#include <strings.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include "alog.h"
int xx_alog_status = 0x3; /* Logging turned ON (default) */
int xx_alog_setup_called = 0; /* setup not yet called */
int xx_alog_output_called = 0; /* output not yet called */
char xx_alog_outdir[MAX_DIRNAME_LEN+1] = "";
struct head_trace_buf *xx_buf_head = NULL;
VOID xx_write(head,pid,event,data1,data2)
struct head_trace_buf *head;
int pid,event,data1;
char *data2;
{
int xx_i, xx_j, found;
struct trace_buf *buf;
if (xx_alog_status >> 1) {
fprintf(stderr, "ALOG: Error: event logging requested by PID %d before doing ALOG setup\n", pid);
return;
}
if (head == NULL) return;
if (head->next_entry == head->max_size +99)
return;
found = 0;
while(!found) {
if (head->next_entry >= head->max_size) {
xx_i = 1;
head->next_entry = 0;
if (head->cbuf->next_buf == NULL)
xx_i = xx_getbuf(head);
else
head->cbuf = head->cbuf->next_buf;
if ((!xx_i) && (head->trace_flag == ALOG_WRAP))
head->cbuf = head->xx_list;
else if (!xx_i) {
head->next_entry = (head->max_size + 99);
return;
}
} /* endif */
buf = head->cbuf;
xx_i = head->next_entry;
head->next_entry++;
if (buf->ALOG_table[xx_i].event > (-1))
found = 1;
} /* end while */
buf->ALOG_table[xx_i].id = pid;
buf->ALOG_table[xx_i].task_id = 0;
buf->ALOG_table[xx_i].event = event;
buf->ALOG_table[xx_i].data_int = data1;
if (event == (-11)){
buf->ALOG_table[xx_i].tstamp = atol(data2);
buf->ALOG_table[xx_i].tind = 0;
strcpy(buf->ALOG_table[xx_i].data_string," ");
head->prev_time = 0;
} else if (event < 0) {
buf->ALOG_table[xx_i].tstamp = 0;
buf->ALOG_table[xx_i].tind = 0;
head->prev_time = 0;
strncpy(buf->ALOG_table[xx_i].data_string,data2,MAX_LOG_STRING_LEN);
buf->ALOG_table[xx_i].data_string[MAX_LOG_STRING_LEN] = '\0';
} else {
buf->ALOG_table[xx_i].tstamp = (unsigned long) usc_clock();
if (buf->ALOG_table[xx_i].tstamp < head->prev_time)
head->ind_time++;
buf->ALOG_table[xx_i].tind = head->ind_time;
head->prev_time = buf->ALOG_table[xx_i].tstamp;
strncpy(buf->ALOG_table[xx_i].data_string,data2,MAX_LOG_STRING_LEN);
buf->ALOG_table[xx_i].data_string[MAX_LOG_STRING_LEN] = '\0';
}
}
VOID xx_dump(head)
struct head_trace_buf *head;
{
struct trace_buf *temp;
FILE *fp;
int cycle;
register int xx_i;
if (head == NULL) return;
if (head->file_t == NULL) {
fprintf(stderr,"ALOG: *** Trace file not written ***\n");
return;
}
fp = head->file_t;
temp = head->xx_list;
for(xx_i = 0; xx_i< head->max_size; xx_i++)
if (temp->ALOG_table[xx_i].event < 0)
fprintf(fp,"%d %d %d %d %u %u %s\n",
temp->ALOG_table[xx_i].event,
temp->ALOG_table[xx_i].id,
temp->ALOG_table[xx_i].task_id,
temp->ALOG_table[xx_i].data_int,
temp->ALOG_table[xx_i].tind,
temp->ALOG_table[xx_i].tstamp,
temp->ALOG_table[xx_i].data_string);
if (head->trace_flag == ALOG_WRAP) {
temp = head->cbuf;
if (temp != NULL)
xx_dump_aux(temp,fp,head->next_entry,head->max_size);
cycle = 0;
while((temp != NULL) && (!cycle)) {
temp = temp->next_buf;
if (temp == NULL)
temp = head->xx_list;
if (temp == head->cbuf)
cycle = 1;
else
xx_dump_aux(temp,fp,0,head->max_size);
};
if (temp != NULL)
xx_dump_aux(temp,fp,0,head->next_entry);
} else {
temp = head->xx_list;
while(temp != NULL) {
xx_dump_aux(temp,fp,0,head->max_size);
temp = temp->next_buf;
};
};
fclose(head->file_t);
}
VOID xx_dump_aux(buf,fp,xx_j,xx_k)
struct trace_buf *buf;
FILE *fp;
int xx_j, xx_k;
{
register int xx_i;
for(xx_i = xx_j; xx_i < xx_k; xx_i++)
if ((buf->ALOG_table[xx_i].id != (-1)) &&
(buf->ALOG_table[xx_i].event >= 0))
fprintf(fp,"%d %d %d %d %u %u %s\n",
buf->ALOG_table[xx_i].event,
buf->ALOG_table[xx_i].id,
buf->ALOG_table[xx_i].task_id,
buf->ALOG_table[xx_i].data_int,
buf->ALOG_table[xx_i].tind,
buf->ALOG_table[xx_i].tstamp,
buf->ALOG_table[xx_i].data_string);
}
int xx_getbuf(head)
struct head_trace_buf *head;
{
register int i;
struct trace_buf *temp;
if (head == NULL) return(0);
temp = (struct trace_buf*) malloc(sizeof(struct trace_buf));
if (temp == NULL)
{
fprintf(stderr,"alog out of memory\n");
return(0);
}
else {
head->cbuf = temp;
for(i=0;i<MAX_BUF_SIZE;i++)
temp->ALOG_table[i].id = (-1);
temp->next_buf = NULL;
if (head->xx_list == NULL)
head->xx_list = temp;
else {
temp = head->xx_list;
while(temp->next_buf != NULL)
temp = temp->next_buf;
temp->next_buf = head->cbuf;
};
return(1);
};
}
VOID xx_user(head,id)
struct head_trace_buf *head;
int id;
{
char c[MAX_LOG_STRING_LEN], cd[100];
if (head == NULL) return;
if (!strcmp(xx_alog_outdir, ""))
getwd(cd);
else
strcpy(cd, xx_alog_outdir);
if (cd[strlen(cd)-1] != '/')
strcat(cd, "/");
strcat(cd,ALOG_LOGFILE);
sprintf(c,"%d",id);
strcat(cd,c);
if ((head->file_t = fopen(cd,"w")) == NULL)
fprintf(stderr,"ALOG: *** Trace file creation failure ***\n");
}
VOID xx_user1(head,id)
struct head_trace_buf *head;
int id;
{
struct stat buf;
char c[MAX_LOG_STRING_LEN], cd[100], x[100];
if (head == NULL) return;
if (!strcmp(xx_alog_outdir, ""))
getwd(cd);
else
strcpy(cd, xx_alog_outdir);
if (cd[strlen(cd)-1] != '/')
strcat(cd, "/");
strcat(cd,ALOG_LOGFILE);
sprintf(c,"%d",id);
strcat(cd,c);
stat(cd,&buf);
strcpy(cd,(char *) ctime(&buf.st_ctime));
strcpy(x,"AL");
strncat(x,cd+4,3);
strcat(x,"-");
strncat(x,cd+8,2);
strcat(x,"-");
strncat(x,cd+22,2);
strcpy(c," ");
strncpy(c,x,12);
xx_write(head,0,(-1),0,c);
sprintf(x,"%lu", (unsigned long) usc_rollover_val());
xx_write(head,0,(-11),0,x);
}
VOID xx_alog_setup(pid,flag)
int pid, flag;
{
register int i;
char c[MAX_LOG_STRING_LEN], cd[MAX_LOG_STRING_LEN];
usc_init();
xx_alog_status &= 0x1; /* set initialized flag */
xx_buf_head = (struct head_trace_buf *)
malloc(sizeof(struct head_trace_buf));
if (xx_buf_head == NULL) {
fprintf(stderr,"ALOG: *** Trace buffer HEADER creation failure;\n");
fprintf(stderr," *** tracing is being disabled.\n");
return;
}
xx_buf_head->next_entry = 0;
xx_buf_head->max_size = MAX_BUF_SIZE;
xx_buf_head->prev_time = 0;
xx_buf_head->ind_time = 0;
xx_buf_head->trace_flag = flag;
xx_buf_head->xx_list = NULL;
if (!(xx_getbuf(xx_buf_head)))
printf("ALOG: **** trace buffer creation failure ****\n");
xx_user(xx_buf_head,(pid));
}