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libsysprof-analyze: add batch getter for stack addresses

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This allows caching the interface vfunc to reduce the overhead of accessing
each instruction pointer in the array.
This commit is contained in:
Christian Hergert
2023-05-04 10:02:53 -07:00
parent 00d8081bfe
commit e8531ebe58
2 changed files with 28 additions and 3 deletions
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21
src/libsysprof-analyze/sysprof-document-traceable.c
View File

@ -57,3 +57,24 @@ sysprof_document_traceable_get_stack_address (SysprofDocumentTraceable *self,
{ {
return SYSPROF_DOCUMENT_TRACEABLE_GET_IFACE (self)->get_stack_address (self, position); return SYSPROF_DOCUMENT_TRACEABLE_GET_IFACE (self)->get_stack_address (self, position);
} }
guint
sysprof_document_traceable_get_stack_addresses (SysprofDocumentTraceable *self,
guint64 *addresses,
guint n_addresses)
{
guint64 (*decoder) (SysprofDocumentTraceable *, guint);
g_return_val_if_fail (SYSPROF_IS_DOCUMENT_TRACEABLE (self), 0);
if (addresses == NULL || n_addresses == 0)
return 0;
decoder = SYSPROF_DOCUMENT_TRACEABLE_GET_IFACE (self)->get_stack_address;
n_addresses = MIN (n_addresses, sysprof_document_traceable_get_stack_depth (self));
for (guint i = 0; i < n_addresses; i++)
addresses[i] = decoder (self, i);
return n_addresses;
}

10
src/libsysprof-analyze/sysprof-document-traceable.h
View File

@ -40,9 +40,13 @@ struct _SysprofDocumentTraceableInterface
}; };
SYSPROF_AVAILABLE_IN_ALL SYSPROF_AVAILABLE_IN_ALL
guint sysprof_document_traceable_get_stack_depth (SysprofDocumentTraceable *self); guint sysprof_document_traceable_get_stack_depth (SysprofDocumentTraceable *self);
SYSPROF_AVAILABLE_IN_ALL SYSPROF_AVAILABLE_IN_ALL
guint64 sysprof_document_traceable_get_stack_address (SysprofDocumentTraceable *self, guint64 sysprof_document_traceable_get_stack_address (SysprofDocumentTraceable *self,
guint position); guint position);
SYSPROF_AVAILABLE_IN_ALL
guint sysprof_document_traceable_get_stack_addresses (SysprofDocumentTraceable *self,
guint64 *addresses,
guint n_addresses);
G_END_DECLS G_END_DECLS