Add powerset_iterator to simgrid::xbt

[simgrid.git] / src / xbt / memory_map.cpp

diff --git a/src/xbt/memory_map.cpp b/src/xbt/memory_map.cpp
index f275135..2d54b6a 100644 (file)
--- a/src/xbt/memory_map.cpp
+++ b/src/xbt/memory_map.cpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2008-2022. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2008-2023. The SimGrid Team. All rights reserved.          */
 
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
@@ -65,8 +65,7 @@
   } else                                                                                                               \
     ((void)0)
 
-namespace simgrid {
-namespace xbt {
+namespace simgrid::xbt {
 
 /**
  * \todo This function contains many cases that do not allow for a
@@ -111,45 +110,46 @@ std::vector<VmMap> get_memory_map(pid_t pid)
       break;
 
     } else if (kr != KERN_SUCCESS) {
-      std::perror("mach_vm_region failed");
-      std::fprintf(stderr, "Cannot request authorization for kernel information access (kr=%d)\n", (int)kr);
+      const char* name = nullptr;
       switch (kr) { // https://github.com/apple/darwin-xnu/blob/main/bsd/kern/stackshot.c#L42
         case KERN_SUCCESS:
-          XBT_INFO("kr=KERN_SUCCESS");
+          name = "kr=KERN_SUCCESS";
           break;
         case KERN_RESOURCE_SHORTAGE:
-          XBT_INFO("kr=KERN_RESOURCE_SHORTAGE (ENOMEM)");
+          name = "kr=KERN_RESOURCE_SHORTAGE (ENOMEM)";
           break;
         case KERN_INSUFFICIENT_BUFFER_SIZE:
-          XBT_INFO("kr=KERN_INSUFFICIENT_BUFFER_SIZE (ENOSPC)");
+          name = "kr=KERN_INSUFFICIENT_BUFFER_SIZE (ENOSPC)";
           break;
         case KERN_NO_SPACE:
-          XBT_INFO("kr=KERN_NO_SPACE (ENOSPC)");
+          name = "kr=KERN_NO_SPACE (ENOSPC)";
           break;
         case KERN_NO_ACCESS:
-          XBT_INFO("kr=KERN_NO_ACCESS (EPERM)");
+          name = "kr=KERN_NO_ACCESS (EPERM)";
           break;
         case KERN_MEMORY_PRESENT:
-          XBT_INFO("kr=KERN_MEMORY_PRESENT (EEXIST)");
+          name = "kr=KERN_MEMORY_PRESENT (EEXIST)";
           break;
         case KERN_NOT_SUPPORTED:
-          XBT_INFO("kr=KERN_NOT_SUPPORTED (ENOTSUP)");
+          name = "kr=KERN_NOT_SUPPORTED (ENOTSUP)";
           break;
         case KERN_NOT_IN_SET:
-          XBT_INFO("kr=KERN_NOT_IN_SET (ENOENT)");
+          name = "kr=KERN_NOT_IN_SET (ENOENT)";
           break;
         case KERN_ABORTED:
-          XBT_INFO("kr=KERN_ABORTED (EINTR)");
+          name = "kr=KERN_ABORTED (EINTR)";
           break;
         case KERN_FAILURE:
-          XBT_INFO("kr=KERN_FAILURE (EBUSY)");
+          name = "kr=KERN_FAILURE (EBUSY)";
           break;
         case KERN_OPERATION_TIMED_OUT:
-          XBT_INFO("kr=KERN_OPERATION_TIMED_OUT (ETIMEDOUT)");
+          name = "kr=KERN_OPERATION_TIMED_OUT (ETIMEDOUT)";
           break;
         default:
-          XBT_INFO("kr=default case (EINVAL)");
+          name = "kr=default case (EINVAL)";
       }
+      std::perror("mach_vm_region failed");
+      std::fprintf(stderr, "Cannot request authorization for kernel information access (kr=%d ; %s)\n", (int)kr, name);
       abort();
     }
 
@@ -202,7 +202,7 @@ std::vector<VmMap> get_memory_map(pid_t pid)
 #elif defined __linux__
   /* Open the actual process's proc maps file and create the memory_map_t */
   /* to be returned. */
-  std::string path = std::string("/proc/") + std::to_string(pid) + "/maps";
+  std::string path = "/proc/" + std::to_string(pid) + "/maps";
   std::ifstream fp;
   fp.rdbuf()->pubsetbuf(nullptr, 0);
   fp.open(path);
@@ -418,5 +418,4 @@ std::vector<VmMap> get_memory_map(pid_t pid)
   return ret;
 }
 
-}
-}
+} // namespace simgrid::xbt