forcing correctness ?

force.patch

diff --git a/php_pthreads.c b/php_pthreads.c
index e0f3e40..51d84ca 100644
--- a/php_pthreads.c
+++ b/php_pthreads.c
@@ -104,6 +104,32 @@ zend_class_entry *spl_ce_RuntimeException;
 
 ZEND_DECLARE_MODULE_GLOBALS(pthreads)
 
+typedef struct _pthreads_supported_sapi_t {
+       const char *name;
+       size_t      nlen;
+} pthreads_supported_sapi_t;
+
+const static pthreads_supported_sapi_t supported[] = {
+       {ZEND_STRL("cli")},
+       {ZEND_STRL("phpdbg")}, /* not really supported, needs work */
+       {NULL, 0}
+};
+
+static inline zend_bool pthreads_is_supported_sapi(char *name) {
+       zend_long nlen = strlen(name);
+       const pthreads_supported_sapi_t *sapi = supported;
+
+       while (sapi->name) {
+               if (nlen == sapi->nlen && 
+                       memcmp(sapi->name, name, nlen) == SUCCESS) {
+                       return 1;
+               }
+               sapi++;
+       }
+
+       return 0;
+}
+
 static inline void pthreads_globals_ctor(zend_pthreads_globals *pg TSRMLS_DC) {
        ZVAL_UNDEF(&pg->this);
        pg->pid = 0L;
@@ -165,6 +191,12 @@ PHP_MINIT_FUNCTION(pthreads)
 {
        zend_class_entry ce;
 
+       if (!pthreads_is_supported_sapi(sapi_module.name)) {
+               zend_error(E_ERROR, "The %s SAPI is not supported by pthreads",
+                       sapi_module.name);
+               return FAILURE;
+       }
+
        REGISTER_LONG_CONSTANT("PTHREADS_INHERIT_ALL", PTHREADS_INHERIT_ALL, CONST_CS | CONST_PERSISTENT);
        REGISTER_LONG_CONSTANT("PTHREADS_INHERIT_NONE", PTHREADS_INHERIT_NONE, CONST_CS | CONST_PERSISTENT);
        REGISTER_LONG_CONSTANT("PTHREADS_INHERIT_INI", PTHREADS_INHERIT_INI, CONST_CS | CONST_PERSISTENT);