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Annotation of researchv9/jtools/src/sam/sys.c, revision 1.1.1.1

1.1       root        1: #include "sam.h"
                      2: /*
                      3:  * A reasonable interface to the system calls
                      4:  */
                      5: syserror(a)
                      6:        char *a;
                      7: {
                      8:        extern int errno;
                      9:        extern char *sys_errlist[];
                     10:        extern int sys_nerr;
                     11:        dprint("%s: ", a);
                     12:        error_s(Eio, (errno && errno<sys_nerr)? sys_errlist[errno] : "error 0");
                     13: }
                     14: Read(f, a, n)
                     15:        uchar *a;
                     16: {
                     17:        if(read(f, (char *)a, n)!=n)
                     18:                syserror("read");
                     19:        return n;
                     20: }
                     21: Write(f, a, n)
                     22:        uchar *a;
                     23: {
                     24:        int m;
                     25:        if((m=write(f, (char *)a, n))!=n)
                     26:                syserror("write");
                     27:        return m;
                     28: }
                     29: Lseek(f, n, w)
                     30:        long n;
                     31: {
                     32:        long lseek();
                     33:        if(lseek(f, n, w)==-1)
                     34:                syserror("lseek");
                     35: }

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