65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
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/*
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T_ATIM.C - Test the attached timer a bit
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Written by John, February 1992
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*/
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#include <p_std.h>
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#include <p_file.h>
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#include <epoc.h>
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LOCAL_C VOID panic(
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INT num,
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INT errno)
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{
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UBYTE b[100];
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p_errs(&b[p_atos(&b[0],"panic num %d - ",num)],errno);
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t_panic(&b[0]);
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}
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GLDEF_C main(VOID)
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{
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UWORD len;
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WORD stat;
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INT ret;
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UBYTE *pcb;
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ULONG timeout;
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UBYTE bb[10];
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GLREF_D P_DEVICE p_wind,p_file;
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p_inst(&p_wind,&p_file,NULL_D);
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if (ret=p_loadldd("ATIMDVR.LDD"))
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panic(1,ret);
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if (ret=p_open(&pcb,"TTY:A"))
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panic(2,ret);
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if (ret=p_open(&pcb,"ATM:",0))
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panic(3,ret);
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timeout=50L; /* 5 second timeout */
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if (ret=p_iow(pcb,P_FSET,&timeout))
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panic(4,ret);
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/*
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Once the device driver hierarchy has been set up the I/O requests are
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identical between a driver with and a driver without an attached timeout
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driver, except of course that the attached timeout driver will not wait
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forever if no characters can be read.
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*/
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len=10;
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p_ioc(pcb,P_FREAD,&stat,&bb[0],&len);
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p_iow(pcb,P_FCANCEL);
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p_waitstat(&stat);
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if (stat!=E_FILE_CANCEL)
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panic(5,stat);
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if ((ret=p_read(pcb,&bb[0],10))!=E_FILE_INACT)
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panic(6,ret); /* times out after 5 seconds */
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p_close(pcb);
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p_close(pcb);
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if (ret=p_devdel("ATM",E_LDD))
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panic(7,ret);
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return(0);
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}
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