98 lines
1.6 KiB
C
98 lines
1.6 KiB
C
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#include "setjmp.h"
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#include "stdio.h"
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#include "stdlib.h"
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#include "unistd.h"
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#include "string.h"
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#include "stdarg.h"
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#include "exception.h"
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#include "mystdlib.h"
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exception_def *exception(){
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static exception_def frame={0};
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return &frame;
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}
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void __throw(char *file,int line,const char *fmt,...){
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exception_def *f=exception();
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jmp_fram *h=f->jmp_head;
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char *buff=0;
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int length=0;
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va_list args;
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f->file=file;
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f->line=line;
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buff=f->log;
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va_start(args, fmt);
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length += vsnprintf(buff + length, THROW_LOG__MAX_SIZE - length - 1, fmt, args);
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va_end(args);
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longjmp((h->fram),1);
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}
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char *err_(){
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exception_def *f=exception();
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return f->log;
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}
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char *file_(){
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exception_def *f=exception();
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return f->file;
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}
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int line_(){
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exception_def *f=exception();
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return f->line;
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}
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void func_two();
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int test_add(int a, int b)
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{
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printf("setjmp test.\n");
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try_{
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printf("first enter setjmp.\n");
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try_{
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printf("try in try.\n");
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func_two();
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// throw_("throw two err.");
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}catch_{
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printf("file=%s,line=%d,err=%s.\n",file_(),line_(),err_());
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}
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throw_("throw a err.");
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}catch_{
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printf("sssss\n");
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printf("file=%s,line=%d,err=%s.\n",file_(),line_(),err_());
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try_{
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printf("try in catch.\n");
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func_two();
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// throw_("throw two err.");
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}catch_{
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printf("file=%s,line=%d,err=%s.\n",file_(),line_(),err_());
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}
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}
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printf("setjmp end.\n");
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return 0;
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}
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void func_two(){
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printf("in func:%s\n",__func__);
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void *p=mem_malloc(512);
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throw_("throw in func_two. in func:%s",__func__);
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mem_free(p);
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}
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