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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include <ctype.h>
# ZZDEBUG.X -- Debug MEMIO.
task memchk = t_memchk,
stack = t_stack,
realloc = t_realloc
# MEMCHK -- Scan the mem.log output produced by the debug version of MEMIO
# (this must be sorted first) and check for memory which is allocated but
# never freed.
procedure t_memchk()
int fd, ip
bool passall, mark
int addr, retaddr, seqno, action, class
int old_addr, old_seqno, old_action
char lbuf[SZ_LINE], old_lbuf[SZ_LINE]
char descr[SZ_LINE], old_descr[SZ_LINE]
char tokbuf[SZ_FNAME], fname[SZ_FNAME]
bool clgetb()
int open(), getline(), nscan(), gctol()
define print_ 91
begin
call clgstr ("fname", fname, SZ_FNAME)
fd = open (fname, READ_ONLY, TEXT_FILE)
passall = clgetb ("passall")
old_addr = 0
old_action = 0
while (getline (fd, lbuf) != EOF) {
# Scan next line.
call sscan (lbuf)
call gargwrd (tokbuf, SZ_FNAME)
ip = 1; ip = gctol (tokbuf, ip, addr, 16)
call gargi (seqno)
call gargwrd (tokbuf, SZ_FNAME)
ip = 1; ip = gctol (tokbuf, ip, retaddr, 16)
call gargwrd (tokbuf, SZ_FNAME)
action = tokbuf[1]
call gargi (class)
call gargstr (descr, SZ_LINE)
if (nscan() < 4) {
if (passall)
call putline (STDOUT, lbuf)
next
}
if (addr != old_addr) {
# Starting a log for a new buffer address.
if (old_lbuf[1] != EOS) {
if (IS_ALPHA(old_action) && old_action != 'F') {
ip = 1
while (old_lbuf[ip] != '\n' && old_lbuf[ip] != EOS)
ip = ip + 1
old_lbuf[ip] = EOS
call printf ("%s %70t####\n")
call pargstr (old_lbuf)
} else if (passall)
call putline (STDOUT, old_lbuf)
}
} else {
# Verify operation on a particular buffer address.
if (old_lbuf[1] != EOS && passall)
call putline (STDOUT, old_lbuf)
mark = false
if (IS_ALPHA(action) && class == 1)
switch (old_action) {
case 'A', 'R':
if (action != 'R' && action != 'F')
mark = true
case 'F':
if (action != 'A')
mark = true
}
if (mark) {
ip = 1
while (lbuf[ip] != '\n' && lbuf[ip] != EOS)
ip = ip + 1
lbuf[ip] = EOS
call printf ("%s %70t####\n")
call pargstr (lbuf)
lbuf[1] = EOS
}
}
old_addr = addr
old_seqno = seqno
old_action = action
call strcpy (descr, old_descr, SZ_LINE)
call strcpy (lbuf, old_lbuf, SZ_LINE)
}
if (old_lbuf[1] != EOS && passall)
call putline (STDOUT, old_lbuf)
end
# STACK -- Test the SALLOC routine, which allocates storage on the stack.
procedure t_stack
int bufsize
pointer sp, junk
int clglpi()
begin
call smark (sp)
while (clglpi ("buffer_size", bufsize) != EOF) {
call salloc (junk, bufsize, TY_CHAR)
call printf ("buffer pointer=%d, size=%d\n")
call pargi (junk)
call pargi (bufsize)
call flush (STDOUT)
}
call sfree (sp)
end
# REALLOC -- Test the REALLOC procedure, used to change the size of a buffer.
# Work with two buffers, so that memory can be fragmented, forcing buffers
# to move.
procedure t_realloc()
pointer a, b
int sza, new_sza, szb, new_szb
int clgeti()
begin
call malloc (a, SZ_LINE, TY_CHAR)
call strcpy ("abcdefghijk", Memc[a], ARB)
sza = SZ_LINE
call malloc (b, SZ_LINE, TY_CHAR)
call strcpy ("0123456789", Memc[b], ARB)
szb = SZ_LINE
call eprintf ("a is at %d, size %d: %s\n")
call pargi (a)
call pargi (sza)
call pargstr (Memc[a])
call eprintf ("b is at %d, size %d: %s\n")
call pargi (b)
call pargi (szb)
call pargstr (Memc[b])
call eprintf ("-------------------------------\n")
repeat {
new_sza = clgeti ("a_bufsize")
if (new_sza == 0)
return
call x_realloc (a, new_sza, TY_CHAR)
new_szb = clgeti ("b_bufsize")
if (new_szb == 0)
return
call x_realloc (b, new_szb, TY_CHAR)
call eprintf ("a buf %d, size %d --> %d: %s\n")
call pargi (a)
call pargi (sza)
call pargi (new_sza)
call pargstr (Memc[a])
call eprintf ("b buf %d, size %d --> %d: %s\n")
call pargi (b)
call pargi (szb)
call pargi (new_szb)
call pargstr (Memc[b])
sza = new_sza
szb = new_szb
}
call mfree (a, TY_CHAR)
call mfree (b, TY_CHAR)
end
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