Fix some SM OSC component initialization issues

.gitignore

@@ -633,6 +633,7 @@ test/class/ompi_rb_tree
 test/class/ompi_bitmap
 test/class/opal_bitmap
 test/class/opal_fifo
+test/class/opal_cstring
 test/class/opal_hash_table
 test/class/opal_lifo
 test/class/opal_list

ompi/mca/osc/base/osc_base_init.c

@@ -57,10 +57,6 @@ ompi_osc_base_select(ompi_win_t *win,
         priority = component->osc_query(win, base, size, disp_unit, comm,
                                         win->super.s_info, flavor);
         if (priority < 0) {
-            if (MPI_WIN_FLAVOR_SHARED == flavor && OMPI_ERR_RMA_SHARED == priority) {
-                /* NTH: quick fix to return OMPI_ERR_RMA_SHARED */
-                return OMPI_ERR_RMA_SHARED;
-            }
             continue;
         }
 

ompi/mca/osc/monitoring/osc_monitoring_component.c

@@ -90,10 +90,6 @@ static int mca_osc_monitoring_component_select(struct ompi_win_t *win, void **ba
 
         priority = component->osc_query(win, base, size, disp_unit, comm, info, flavor);
         if (priority < 0) {
-            if (MPI_WIN_FLAVOR_SHARED == flavor && OMPI_ERR_RMA_SHARED == priority) {
-                /* NTH: quick fix to return OMPI_ERR_RMA_SHARED */
-                return OMPI_ERR_RMA_SHARED;
-            }
             continue;
         }
 

ompi/mca/osc/rdma/osc_rdma_component.c

@@ -383,7 +383,7 @@ static int ompi_osc_rdma_component_query (struct ompi_win_t *win, void **base, s
 {
 
     if (MPI_WIN_FLAVOR_SHARED == flavor) {
-        return OMPI_ERR_RMA_SHARED;
+        return -1;
     }
 
 #if OPAL_CUDA_SUPPORT
@@ -403,7 +403,7 @@ static int ompi_osc_rdma_component_query (struct ompi_win_t *win, void **base, s
         return mca_osc_rdma_component.priority;
     }
 
-    return OMPI_ERROR;
+    return -1;
 }
 
 static int ompi_osc_rdma_initialize_region (ompi_osc_rdma_module_t *module, void **base, size_t size) {

ompi/mca/osc/sm/osc_sm.h

@@ -53,6 +53,9 @@ typedef struct ompi_osc_sm_node_state_t ompi_osc_sm_node_state_t;
 struct ompi_osc_sm_component_t {
     ompi_osc_base_component_t super;
 
+    /** Priority of the osc/sm component */
+    unsigned int priority;
+
     char *backing_directory;
 };
 typedef struct ompi_osc_sm_component_t ompi_osc_sm_component_t;

ompi/mca/osc/sm/osc_sm_component.c

@@ -115,6 +115,8 @@ ompi_osc_sm_module_t ompi_osc_sm_module_template = {
 
 static int component_register (void)
 {
+    char *description_str;
+
     if (0 == access ("/dev/shm", W_OK)) {
         mca_osc_sm_component.backing_directory = "/dev/shm";
     } else {
@@ -128,6 +130,16 @@ static int component_register (void)
                                             MCA_BASE_VAR_TYPE_STRING, NULL, 0, 0, OPAL_INFO_LVL_3,
                                             MCA_BASE_VAR_SCOPE_READONLY, &mca_osc_sm_component.backing_directory);
 
+    mca_osc_sm_component.priority = 100;
+    opal_asprintf(&description_str, "Priority of the osc/sm component (default: %d)",
+                  mca_osc_sm_component.priority);
+    (void)mca_base_component_var_register(&mca_osc_sm_component.super.osc_version,
+                                          "priority", description_str,
+                                          MCA_BASE_VAR_TYPE_UNSIGNED_INT, NULL, 0, 0,
+                                          OPAL_INFO_LVL_3, MCA_BASE_VAR_SCOPE_GROUP,
+                                          &mca_osc_sm_component.priority);
+    free(description_str);
+
     return OPAL_SUCCESS;
 }
 
@@ -154,36 +166,32 @@ component_finalize(void)
 }
 
 
-static int
-check_win_ok(ompi_communicator_t *comm, int flavor)
-{
-    if (! (MPI_WIN_FLAVOR_SHARED == flavor
-           || MPI_WIN_FLAVOR_ALLOCATE == flavor) ) {
-        return OMPI_ERR_NOT_SUPPORTED;
-    }
-
-    if (ompi_group_have_remote_peers (comm->c_local_group)) {
-        return OMPI_ERR_RMA_SHARED;
-    }
-
-    return OMPI_SUCCESS;
-}
-
-
 static int
 component_query(struct ompi_win_t *win, void **base, size_t size, int disp_unit,
                 struct ompi_communicator_t *comm, struct opal_info_t *info,
                 int flavor)
 {
     int ret;
-    if (OMPI_SUCCESS != (ret = check_win_ok(comm, flavor))) {
-        if (OMPI_ERR_NOT_SUPPORTED == ret) {
+
+    /* component only supports shared or allocate flavors */
+    if (! (MPI_WIN_FLAVOR_SHARED == flavor ||
+           MPI_WIN_FLAVOR_ALLOCATE == flavor)) {
+        return -1;
+    }
+
+    /* If flavor is win_allocate, we can't run if there are remote
+     * peers in the group.  The same check for flavor_shared happens
+     * in select(), so that we can return an error to the user (since
+     * we should be able to run for all flavor_shared use cases.
+     * There's no way to return an error from component_query to the
+     * user, hence the delayed check.  */
+    if (MPI_WIN_FLAVOR_ALLOCATE == flavor) {
+        if (ompi_group_have_remote_peers(comm->c_local_group)) {
             return -1;
         }
-        return ret;
     }
 
-    return 100;
+    return mca_osc_sm_component.priority;
 }
 
 
@@ -198,8 +206,10 @@ component_select(struct ompi_win_t *win, void **base, size_t size, int disp_unit
     int ret = OMPI_ERROR;
     size_t memory_alignment = OPAL_ALIGN_MIN;
 
-    if (OMPI_SUCCESS != (ret = check_win_ok(comm, flavor))) {
-        return ret;
+    assert(MPI_WIN_FLAVOR_SHARED == flavor || MPI_WIN_FLAVOR_ALLOCATE == flavor);
+
+    if (ompi_group_have_remote_peers(comm->c_local_group)) {
+        return OMPI_ERR_RMA_SHARED;
     }
 
     /* create module structure */

opal/class/opal_cstring.c

@@ -33,7 +33,7 @@ static void opal_cstring_ctor(opal_cstring_t *obj)
 {
     *(size_t *) &(obj->length) = 0;
     /* make sure the string is null-terminated */
-    ((char *) obj->string)[0] = '\n';
+    ((char *) obj->string)[0] = '\0';
 }
 
 static inline size_t opal_cstring_alloc_size(size_t len)
@@ -90,10 +90,18 @@ int opal_cstring_to_int(opal_cstring_t *string, int *interp)
     if (*endp != '\0') {
         return OPAL_ERR_BAD_PARAM;
     }
-    /* underflow */
+    /* base errors */
     if (tmp == 0 && errno == EINVAL) {
         return OPAL_ERR_BAD_PARAM;
     }
+    /* overflow/underflow of long int (return of strtol) */
+    if (errno == ERANGE && (tmp == LONG_MIN || tmp == LONG_MAX)) {
+        return OPAL_ERR_BAD_PARAM;
+    }
+    /* overflow/underflow of int (for cases where long int is larger) */
+    if (tmp < INT_MIN || tmp > INT_MAX) {
+        return OPAL_ERR_BAD_PARAM;
+    }
 
     *interp = (int) tmp;
 
@@ -104,24 +112,28 @@ static int opal_str_to_bool_impl(const char *string, bool *interp)
 {
     const char *ptr = string;
 
-    /* Trim leading whitespace */
-    while (isspace(*ptr)) {
-        ++ptr;
-    }
+    if (NULL != string) {
+        /* Trim leading whitespace */
+        while (isspace(*ptr)) {
+            ++ptr;
+        }
 
-    if ('\0' != *ptr) {
-        if (isdigit(*ptr)) {
-            *interp = (bool) atoi(ptr);
-        } else if (0 == strncasecmp(ptr, "yes", 3) || 0 == strncasecmp(ptr, "true", 4)) {
-            *interp = true;
-        } else if (0 == strncasecmp(ptr, "no", 2) && 0 == strncasecmp(ptr, "false", 5)) {
-            *interp = false;
-        } else {
-            *interp = false;
-            return OPAL_ERR_BAD_PARAM;
+        if ('\0' != *ptr) {
+            if (isdigit(*ptr)) {
+                *interp = (bool) atoi(ptr);
+                return OPAL_SUCCESS;
+            } else if (0 == strncasecmp(ptr, "yes", 3) || 0 == strncasecmp(ptr, "true", 4)) {
+                *interp = true;
+                return OPAL_SUCCESS;
+            } else if (0 == strncasecmp(ptr, "no", 2) || 0 == strncasecmp(ptr, "false", 5)) {
+                *interp = false;
+                return OPAL_SUCCESS;
+            }
         }
     }
-    return OPAL_SUCCESS;
+
+    *interp = false;
+    return OPAL_ERR_BAD_PARAM;
 }
 
 int opal_cstring_to_bool(opal_cstring_t *string, bool *interp)

opal/class/opal_cstring.h

@@ -43,7 +43,6 @@
 #ifndef OPAL_STRING_H
 #define OPAL_STRING_H
 
-#include "opal_config.h"
 #include "opal/class/opal_object.h"
 #include "opal/mca/base/mca_base_var_enum.h"
 

test/class/Makefile.am

@@ -35,7 +35,8 @@ check_PROGRAMS = \
 	opal_value_array \
 	opal_pointer_array \
 	opal_lifo \
-	opal_fifo
+	opal_fifo \
+	opal_cstring
 
 TESTS = $(check_PROGRAMS)
 
@@ -94,6 +95,12 @@ opal_fifo_LDADD = \
 	$(top_builddir)/test/support/libsupport.a
 opal_fifo_DEPENDENCIES = $(opal_fifo_LDADD)
 
+opal_cstring_SOURCES = opal_cstring.c
+opal_cstring_LDADD = \
+        $(top_builddir)/opal/lib@[email protected] \
+	$(top_builddir)/test/support/libsupport.a
+opal_cstring_DEPENDENCIES = $(opal_cstring_LDADD)
+
 clean-local:
 	rm -f opal_bitmap_test_out.txt opal_hash_table_test_out.txt opal_proc_table_test_out.txt