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From 3e4a66f0dfb02046f6d3375d637840b6da9c71d1 Mon Sep 17 00:00:00 2001
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From: michalbiesek <michal.biesek@intel.com>
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Date: Mon, 2 Dec 2019 11:21:03 +0100
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Subject: [PATCH 139/217] daxctl: provide safe versions of iteration API
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Add support for safe iterate through regions and devices
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Link: https://github.com/pmem/ndctl/pull/132
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Signed-off-by: Michal Biesek <michal.biesek@intel.com>
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Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
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---
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daxctl/libdaxctl.h | 13 +++++++++++++
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1 file changed, 13 insertions(+)
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diff --git a/daxctl/libdaxctl.h b/daxctl/libdaxctl.h
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index 6b6c71f..6876037 100644
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--- a/daxctl/libdaxctl.h
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+++ b/daxctl/libdaxctl.h
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@@ -93,12 +93,25 @@ int daxctl_memory_online_no_movable(struct daxctl_memory *mem);
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dev != NULL; \
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dev = daxctl_dev_get_next(dev))
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+#define daxctl_dev_foreach_safe(region, dev, _dev) \
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+ for (dev = daxctl_dev_get_first(region), \
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+ _dev = dev ? daxctl_dev_get_next(dev) : NULL; \
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+ dev != NULL; \
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+ dev = _dev, \
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+ _dev = _dev ? daxctl_dev_get_next(_dev) : NULL)
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#define daxctl_region_foreach(ctx, region) \
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for (region = daxctl_region_get_first(ctx); \
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region != NULL; \
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region = daxctl_region_get_next(region))
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+#define daxctl_region_foreach_safe(ctx, region, _region) \
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+ for (region = daxctl_region_get_first(ctx), \
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+ _region = region ? daxctl_region_get_next(region) : NULL; \
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+ region != NULL; \
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+ region = _region, \
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+ _region = _region ? daxctl_region_get_next(_region) : NULL)
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+
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struct daxctl_mapping;
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struct daxctl_mapping *daxctl_mapping_get_first(struct daxctl_dev *dev);
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struct daxctl_mapping *daxctl_mapping_get_next(struct daxctl_mapping *mapping);
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--
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2.27.0
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