preparing to handle singals

bin/hcl.c

@@ -141,7 +141,7 @@ static void vm_checkbc (hcl_t* hcl, hcl_oob_t bcode)
 }
 */
 
-static void gc_hcl (hcl_t* hcl)
+static void on_gc_hcl (hcl_t* hcl)
 {
 	/*xtn_t* xtn = (xtn_t*)hcl_getxtn(hcl);*/
 	/*if (xtn->sym_errstr) xtn->sym_errstr = hcl_moveoop(hcl, xtn->sym_errstr);*/
@@ -859,7 +859,7 @@ int main (int argc, char* argv[])
 	}
 
 	memset (&hclcb, 0, HCL_SIZEOF(hclcb));
-	hclcb.gc = gc_hcl;
+	hclcb.on_gc = on_gc_hcl;
 	hclcb.vm_startup = vm_startup;
 	hclcb.vm_cleanup = vm_cleanup;
 	/*hclcb.vm_checkbc = vm_checkbc;*/

lib/gc.c

@@ -1024,7 +1024,7 @@ static HCL_INLINE void gc_ms_mark_roots (hcl_t* hcl)
 
 	for (cb = hcl->cblist; cb; cb = cb->next)
 	{
-		if (cb->gc) cb->gc (hcl);
+		if (cb->on_gc) cb->on_gc (hcl);
 	}
 
 #if defined(ENABLE_GCFIN)

lib/hcl-cmn.h

@@ -766,7 +766,7 @@ struct hcl_ntime_t
 #define HCL_LBMASK(type,n) (~(~((type)0) << (n)))
 #define HCL_LBMASK_SAFE(type,n) (((n) < HCL_BITSOF(type))? HCL_LBMASK(type,n): ~(type)0)
 
-/* make a bit mask that can mask off hig n bits */
+/* make a bit mask that can mask off high n bits */
 #define HCL_HBMASK(type,n) (~(~((type)0) >> (n)))
 #define HCL_HBMASK_SAFE(type,n) (((n) < HCL_BITSOF(type))? HCL_HBMASK(type,n): ~(type)0)
 

lib/hcl.c

@@ -231,7 +231,7 @@ void hcl_fini (hcl_t* hcl)
 
 	for (cb = hcl->cblist; cb; cb = cb->next)
 	{
-		if (cb->fini) cb->fini (hcl);
+		if (cb->on_fini) cb->on_fini (hcl);
 	}
 
 	if (hcl->log.len > 0)
@@ -583,7 +583,7 @@ int hcl_setoption (hcl_t* hcl, hcl_option_t id, const void* value)
 
 	for (cb = hcl->cblist; cb; cb = cb->next)
 	{
-		if (cb->opt_set) cb->opt_set (hcl, id, value);
+		if (cb->on_option) cb->on_option (hcl, id, value);
 	}
 
 	return 0;

lib/hcl.h

@@ -1173,6 +1173,20 @@ typedef int (*hcl_vmprim_sleep_t) (
 	const hcl_ntime_t* duration
 );
 
+typedef hcl_ooi_t (*hcl_vmprim_getsigfd_t) (
+	hcl_t*             hcl
+);
+
+typedef int (*hcl_vmprim_getsig_t) (
+	hcl_t*             hcl,
+	hcl_uint8_t*       sig
+);
+
+typedef int (*hcl_vmprim_setsig_t) (
+	hcl_t*             hcl,
+	hcl_uint8_t        sig
+);
+
 struct hcl_vmprim_t
 {
 	/* The alloc_heap callback function is called very earlier
@@ -1204,6 +1218,10 @@ struct hcl_vmprim_t
 	hcl_vmprim_muxmod_t    vm_muxmod;
 	hcl_vmprim_muxwait_t   vm_muxwait;
 	hcl_vmprim_sleep_t     vm_sleep; /* required */
+
+	hcl_vmprim_getsigfd_t  vm_getsigfd;
+	hcl_vmprim_getsig_t    vm_getsig;
+	hcl_vmprim_setsig_t    vm_setsig;
 };
 
 typedef struct hcl_vmprim_t hcl_vmprim_t;
@@ -1404,9 +1422,10 @@ typedef int (*hcl_io_impl_t) (
  * ========================================================================= */
 
 
-typedef void (*hcl_cb_opt_set_t) (hcl_t* hcl, hcl_option_t id, const void* val);
-typedef void (*hcl_cb_fini_t) (hcl_t* hcl);
-typedef void (*hcl_cb_gc_t) (hcl_t* hcl);
+typedef void (*hcl_cb_on_fini_t)    (hcl_t* hcl);
+typedef void (*hcl_cb_on_halting_t) (hcl_t* hcl);
+typedef void (*hcl_cb_on_option_t)  (hcl_t* hcl, hcl_option_t id, const void* val);
+typedef void (*hcl_cb_on_gc_t)      (hcl_t* hcl);
 typedef int  (*hcl_cb_vm_startup_t) (hcl_t* hcl);
 typedef void (*hcl_cb_vm_cleanup_t) (hcl_t* hcl);
 typedef void (*hcl_cb_vm_checkbc_t) (hcl_t* hcl, hcl_oob_t bcode);
@@ -1414,9 +1433,10 @@ typedef void (*hcl_cb_vm_checkbc_t) (hcl_t* hcl, hcl_oob_t bcode);
 typedef struct hcl_cb_t hcl_cb_t;
 struct hcl_cb_t
 {
-	hcl_cb_opt_set_t opt_set;
-	hcl_cb_gc_t gc;
-	hcl_cb_fini_t fini;
+	hcl_cb_on_fini_t    on_fini; /* called from hcl_fini() */
+	hcl_cb_on_halting_t halting;
+	hcl_cb_on_option_t  on_option; /* called from hcl_setoption() */
+	hcl_cb_on_gc_t      on_gc; /* called from hcl_gc() */
 
 	hcl_cb_vm_startup_t vm_startup;
 	hcl_cb_vm_cleanup_t vm_cleanup;

lib/read.c

@@ -4008,8 +4008,8 @@ static int init_compiler (hcl_t* hcl)
 	HCL_ASSERT (hcl, hcl->c == HCL_NULL);
 
 	HCL_MEMSET (&cb, 0, HCL_SIZEOF(cb));
-	cb.gc = gc_compiler_cb;
-	cb.fini = fini_compiler_cb;
+	cb.on_gc = gc_compiler_cb;
+	cb.on_fini = fini_compiler_cb;
 	cbp = hcl_regcb(hcl, &cb);
 	if (HCL_UNLIKELY(!cbp)) return -1;