[dpdk-dev] eal: add doc for constructor macros
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Commit Message
It is a reminder that the constructors without priority
get the lowest priority.
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
---
lib/librte_eal/common/include/rte_eal.h | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
Comments
On 10/2/2017 3:59 PM, Thomas Monjalon wrote:
> It is a reminder that the constructors without priority
> get the lowest priority.
>
> Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
02/10/2017 20:57, Ferruh Yigit:
> On 10/2/2017 3:59 PM, Thomas Monjalon wrote:
> > It is a reminder that the constructors without priority
> > get the lowest priority.
> >
> > Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
>
> Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Applied
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Thomas Monjalon
> Sent: Tuesday, October 3, 2017 10:15 AM
> To: dev@dpdk.org
> Cc: Yigit, Ferruh <ferruh.yigit@intel.com>
> Subject: Re: [dpdk-dev] [PATCH] eal: add doc for constructor macros
>
> 02/10/2017 20:57, Ferruh Yigit:
> > On 10/2/2017 3:59 PM, Thomas Monjalon wrote:
> > > It is a reminder that the constructors without priority get the
> > > lowest priority.
> > >
> > > Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
> >
> > Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
>
Acked-by: John McNamara <john.mcnamara@intel.com>
@@ -287,9 +287,26 @@ static inline int rte_gettid(void)
return RTE_PER_LCORE(_thread_id);
}
+/**
+ * Run function before main() with low priority.
+ *
+ * The constructor will be run after prioritized constructors.
+ *
+ * @param func
+ * Constructor function.
+ */
#define RTE_INIT(func) \
static void __attribute__((constructor, used)) func(void)
+/**
+ * Run function before main() with high priority.
+ *
+ * @param func
+ * Constructor function.
+ * @param prio
+ * Priority number must be above 100.
+ * Lowest number is the first to run.
+ */
#define RTE_INIT_PRIO(func, prio) \
static void __attribute__((constructor(prio), used)) func(void)