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libsysprof-analyze: ensure mounts are sorted by length

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This matches what we did previously so that we find the closest mount
match first.
This commit is contained in:
Christian Hergert
2023-05-19 17:07:29 -07:00
parent 39e6be47fb
commit f1d0d71ee5
1 changed files with 26 additions and 0 deletions
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26
src/libsysprof-analyze/sysprof-mount-namespace.c
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@ -29,6 +29,7 @@ struct _SysprofMountNamespace
GObject parent_instance;
GPtrArray *devices;
GPtrArray *mounts;
guint mounts_dirty : 1;
};
static GType
@ -145,6 +146,8 @@ sysprof_mount_namespace_add_mount (SysprofMountNamespace *self,
g_return_if_fail (SYSPROF_IS_MOUNT (mount));
g_ptr_array_add (self->mounts, mount);
self->mounts_dirty = TRUE;
}
void
@ -193,6 +196,23 @@ sysprof_mount_namespace_find_device (SysprofMountNamespace *self,
return NULL;
}
static gint
sort_by_length (gconstpointer a,
gconstpointer b)
{
SysprofMount *mount_a = *(SysprofMount * const *)a;
SysprofMount *mount_b = *(SysprofMount * const *)b;
gsize alen = strlen (sysprof_mount_get_mount_point (mount_a));
gsize blen = strlen (sysprof_mount_get_mount_point (mount_b));
if (alen > blen)
return -1;
else if (blen > alen)
return 1;
else
return 0;
}
/**
* sysprof_mount_namespace_translate:
* @self: a #SysprofMountNamespace
@ -217,6 +237,12 @@ sysprof_mount_namespace_translate (SysprofMountNamespace *self,
g_return_val_if_fail (SYSPROF_IS_MOUNT_NAMESPACE (self), NULL);
g_return_val_if_fail (file != NULL, NULL);
if (self->mounts_dirty)
{
g_ptr_array_sort (self->mounts, sort_by_length);
self->mounts_dirty = FALSE;
}
strv = g_array_new (TRUE, FALSE, sizeof (char *));
for (guint i = 0; i < self->mounts->len; i++)