int main() {
pid_t pid = fork();
if (pid < 0) {
fprintf(stderr, "error: fork(%d) %s\n", errno, strerror(errno));
return -1;
} else if (pid == 0) { // child proc
cproc();
_exit(-1);
} else { // this proc
fprintf(stderr, "wait cproc\n");
// If wait() returns due to a stopped or terminated child process, the process ID of the child is returned to the calling process.
// Otherwise, a value of -1 is returned and errno is set to indicate the error.
int status;
if (waitpid(pid, &status, 0) < 0) {
fprintf(stderr, "error: waitpid(%d) %s\n", errno, strerror(errno));
return 1;
}
if (WIFEXITED(status)) {
int s = WEXITSTATUS(status);
fprintf(stderr, "cproc's status=%04x\n", status);
return s;
} else {
fprintf(stderr, "cproc's status=%04x\n", status);
return 1;
}
}
}
int
scm_ramapc (void *cproc_ptr, SCM data, SCM ra0, SCM lra, const char *what)
{
int (*cproc) () = cproc_ptr;
SCM z, va0, lva, *plva;
int k, kmax, kroll;
ssize_t *vi, inc;
size_t len;
/* Prepare reference argument. */
if (SCM_I_ARRAYP (ra0))
{
kmax = SCM_I_ARRAY_NDIM (ra0)-1;
inc = kmax < 0 ? 0 : SCM_I_ARRAY_DIMS (ra0)[kmax].inc;
va0 = make1array (SCM_I_ARRAY_V (ra0), inc);
/* Find unroll depth */
for (kroll = max(0, kmax); kroll > 0; --kroll)
{
inc *= (UBND (ra0, kroll) - LBND (ra0, kroll) + 1);
if (inc != SCM_I_ARRAY_DIMS (ra0)[kroll-1].inc)
break;
}
}
else
{
kroll = kmax = 0;
va0 = ra0 = make1array (ra0, 1);
}
/* Prepare rest arguments. */
lva = SCM_EOL;
plva = &lva;
for (z = lra; !scm_is_null (z); z = SCM_CDR (z))
{
SCM va1, ra1 = SCM_CAR (z);
if (SCM_I_ARRAYP (ra1))
{
if (kmax != SCM_I_ARRAY_NDIM (ra1) - 1)
scm_misc_error (what, "array shape mismatch: ~S", scm_list_1 (ra0));
inc = kmax < 0 ? 0 : SCM_I_ARRAY_DIMS (ra1)[kmax].inc;
va1 = make1array (SCM_I_ARRAY_V (ra1), inc);
/* Check unroll depth. */
for (k = kmax; k > kroll; --k)
{
ssize_t l0 = LBND (ra0, k), u0 = UBND (ra0, k);
if (l0 < LBND (ra1, k) || u0 > UBND (ra1, k))
scm_misc_error (what, "array shape mismatch: ~S", scm_list_1 (ra0));
inc *= (u0 - l0 + 1);
if (inc != SCM_I_ARRAY_DIMS (ra1)[k-1].inc)
{
kroll = k;
break;
}
}
/* Check matching of not-unrolled axes. */
for (; k>=0; --k)
if (LBND (ra0, k) < LBND (ra1, k) || UBND (ra0, k) > UBND (ra1, k))
scm_misc_error (what, "array shape mismatch: ~S", scm_list_1 (ra0));
}
else
{
if (kmax != 0)
scm_misc_error (what, "array shape mismatch: ~S", scm_list_1 (ra0));
va1 = make1array (ra1, 1);
if (LBND (ra0, 0) < LBND (va1, 0) || UBND (ra0, 0) > UBND (va1, 0))
scm_misc_error (what, "array shape mismatch: ~S", scm_list_1 (ra0));
}
*plva = scm_cons (va1, SCM_EOL);
plva = SCM_CDRLOC (*plva);
}
/* Check emptiness of not-unrolled axes. */
for (k = 0; k < kroll; ++k)
if (0 == (UBND (ra0, k) - LBND (ra0, k) + 1))
return 1;
/* Set unrolled size. */
for (len = 1; k <= kmax; ++k)
len *= (UBND (ra0, k) - LBND (ra0, k) + 1);
UBND (va0, 0) = len - 1;
for (z = lva; !scm_is_null (z); z = SCM_CDR (z))
UBND (SCM_CAR (z), 0) = len - 1;
/* Set starting indices and go. */
vi = scm_gc_malloc_pointerless (sizeof(ssize_t) * kroll, vi_gc_hint);
for (k = 0; k < kroll; ++k)
vi[k] = LBND (ra0, k);
do
{
if (k == kroll)
{
SCM y = lra;
SCM_I_ARRAY_SET_BASE (va0, cindk (ra0, vi, kroll));
for (z = lva; !scm_is_null (z); z = SCM_CDR (z), y = SCM_CDR (y))
SCM_I_ARRAY_SET_BASE (SCM_CAR (z), cindk (SCM_CAR (y), vi, kroll));
if (! (SCM_UNBNDP (data) ? cproc (va0, lva) : cproc (va0, data, lva)))
return 0;
--k;
}
else if (vi[k] < UBND (ra0, k))
{
++vi[k];
++k;
}
else
{
vi[k] = LBND (ra0, k) - 1;
--k;
}
}
while (k >= 0);
return 1;
}
