Blame SOURCES/0006-util-add-_adcli_strv_remove_unsorted.patch

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From 3c97263990648f808010220a080f4f9a4e846dac Mon Sep 17 00:00:00 2001
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From: Sumit Bose <sbose@redhat.com>
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Date: Thu, 14 Jun 2018 16:48:22 +0200
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Subject: [PATCH 6/7] util: add _adcli_strv_remove_unsorted
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Related to https://bugzilla.redhat.com/show_bug.cgi?id=1547014
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---
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 library/adprivate.h |   4 ++
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 library/adutil.c    |  21 ++++++++
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 library/seq.c       | 149 +++++++++++++++++++++++++++++++++++++++++++++++++---
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 library/seq.h       |  12 +++++
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 4 files changed, 179 insertions(+), 7 deletions(-)
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diff --git a/library/adprivate.h b/library/adprivate.h
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index 7485249..bc9df6d 100644
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--- a/library/adprivate.h
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+++ b/library/adprivate.h
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@@ -111,6 +111,10 @@ char **        _adcli_strv_add               (char **strv,
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                                               char *string,
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                                               int *length) GNUC_WARN_UNUSED;
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+void           _adcli_strv_remove_unsorted   (char **strv,
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+                                              const char *string,
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+                                              int *length);
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+
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 void           _adcli_strv_free              (char **strv);
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 int            _adcli_strv_has               (char **strv,
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diff --git a/library/adutil.c b/library/adutil.c
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index a27bd68..6334b52 100644
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--- a/library/adutil.c
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+++ b/library/adutil.c
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@@ -221,6 +221,27 @@ _adcli_strv_add (char **strv,
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 	return seq_push (strv, length, string);
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 }
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+#define discard_const(ptr) ((void *)((uintptr_t)(ptr)))
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+
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+void
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+_adcli_strv_remove_unsorted (char **strv,
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+                             const char *string,
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+                             int *length)
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+{
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+	int len;
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+
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+	return_if_fail (string != NULL);
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+
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+	if (!length) {
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+		len = seq_count (strv);
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+		length = &len;
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+	}
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+
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+	return seq_remove_unsorted (strv, length, discard_const (string),
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+	                            (seq_compar)strcasecmp, free);
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+}
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+
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+
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 int
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 _adcli_strv_has (char **strv,
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                  const char *str)
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diff --git a/library/seq.c b/library/seq.c
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index 627dcaf..8e7475d 100644
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--- a/library/seq.c
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+++ b/library/seq.c
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@@ -111,6 +111,24 @@ seq_push (seq_voidp sequence,
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 	return seq;
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 }
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+static int
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+linear_search (void **seq,
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+               int low,
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+               int high,
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+               void *match,
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+               seq_compar compar)
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+{
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+	int at;
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+
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+	for (at = low; at < high; at++) {
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+		if (compar (match, seq[at]) == 0) {
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+			break;
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+		}
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+	}
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+
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+	return at;
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+}
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+
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 static int
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 binary_search (void **seq,
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                int low,
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@@ -171,12 +189,13 @@ seq_insert (seq_voidp sequence,
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 	return seq;
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 }
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-void
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-seq_remove (seq_voidp sequence,
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-            int *length,
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-            void *match,
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-            seq_compar compar,
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-            seq_destroy destroy)
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+static void
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+seq_remove_int (seq_voidp sequence,
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+                int *length,
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+                void *match,
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+                seq_search search,
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+                seq_compar compar,
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+                seq_destroy destroy)
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 {
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 	void **seq = sequence;
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 	int at;
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@@ -187,7 +206,7 @@ seq_remove (seq_voidp sequence,
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 	assert (match != NULL);
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 	len = *length;
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-	at = binary_search (seq, 0, len, match, compar);
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+	at = search (seq, 0, len, match, compar);
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 	/* We have a matching value */
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 	if (at < len && compar (match, seq[at]) == 0) {
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@@ -201,6 +220,26 @@ seq_remove (seq_voidp sequence,
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 	*length = len;
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 }
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+void
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+seq_remove (seq_voidp sequence,
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+            int *length,
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+            void *match,
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+            seq_compar compar,
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+            seq_destroy destroy)
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+{
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+	return seq_remove_int (sequence, length, match, binary_search, compar, destroy);
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+}
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+
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+void
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+seq_remove_unsorted (seq_voidp sequence,
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+                     int *length,
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+                     void *match,
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+                     seq_compar compar,
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+                     seq_destroy destroy)
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+{
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+	return seq_remove_int (sequence, length, match, linear_search, compar, destroy);
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+}
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+
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 void
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 seq_filter (seq_voidp sequence,
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             int *length,
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@@ -430,6 +469,99 @@ test_remove (void)
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 	seq_free (seq, NULL);
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 }
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+static void
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+test_remove_unsorted (void)
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+{
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+	void **seq = NULL;
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+	int len = 0;
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+
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+	seq = seq_push (seq, &len, "3");
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+	seq = seq_push (seq, &len, "5");
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+	seq = seq_push (seq, &len, "1");
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+	seq = seq_push (seq, &len, "4");
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+	seq = seq_push (seq, &len, "2");
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+
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+	assert_str_eq (seq[0], "3");
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+	assert_str_eq (seq[1], "5");
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+	assert_str_eq (seq[2], "1");
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+	assert_str_eq (seq[3], "4");
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+	assert_str_eq (seq[4], "2");
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+	assert (seq[5] == NULL);
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+	assert_num_eq (len, 5);
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+
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+	seq_remove_unsorted (seq, &len, "3", (seq_compar)strcmp, NULL);
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+	seq_remove_unsorted (seq, &len, "2", (seq_compar)strcmp, NULL);
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+
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+	assert_str_eq (seq[0], "5");
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+	assert_str_eq (seq[1], "1");
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+	assert_str_eq (seq[2], "4");
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+	assert (seq[3] == NULL);
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+	assert_num_eq (len, 3);
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+
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+	seq_free (seq, NULL);
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+}
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+
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+static void
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+test_remove_first (void)
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+{
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+	void **seq = NULL;
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+	int len = 0;
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+
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+	seq = seq_insert (seq, &len, "3", (seq_compar)strcmp, NULL);
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+	seq = seq_insert (seq, &len, "5", (seq_compar)strcmp, NULL);
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+	seq = seq_insert (seq, &len, "1", (seq_compar)strcmp, NULL);
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+	seq = seq_insert (seq, &len, "4", (seq_compar)strcmp, NULL);
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+	seq = seq_insert (seq, &len, "2", (seq_compar)strcmp, NULL);
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+
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+	assert_str_eq (seq[0], "1");
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+	assert_str_eq (seq[1], "2");
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+	assert_str_eq (seq[2], "3");
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+	assert_str_eq (seq[3], "4");
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+	assert_str_eq (seq[4], "5");
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+	assert (seq[5] == NULL);
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+	assert_num_eq (len, 5);
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+
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+	seq_remove (seq, &len, "1", (seq_compar)strcmp, NULL);
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+
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+	assert_str_eq (seq[0], "2");
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+	assert_str_eq (seq[1], "3");
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+	assert_str_eq (seq[2], "4");
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+	assert_str_eq (seq[3], "5");
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+	assert (seq[4] == NULL);
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+	assert_num_eq (len, 4);
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+
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+	seq_free (seq, NULL);
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+}
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+
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+static void
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+test_remove_last (void)
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+{
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+	void **seq = NULL;
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+	int len = 0;
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+
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+	seq = seq_insert (seq, &len, "3", (seq_compar)strcmp, NULL);
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+	seq = seq_insert (seq, &len, "1", (seq_compar)strcmp, NULL);
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+	seq = seq_insert (seq, &len, "4", (seq_compar)strcmp, NULL);
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+	seq = seq_insert (seq, &len, "2", (seq_compar)strcmp, NULL);
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+
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+	assert_str_eq (seq[0], "1");
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+	assert_str_eq (seq[1], "2");
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+	assert_str_eq (seq[2], "3");
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+	assert_str_eq (seq[3], "4");
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+	assert (seq[4] == NULL);
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+	assert_num_eq (len, 4);
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+
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+	seq_remove (seq, &len, "4", (seq_compar)strcmp, NULL);
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+
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+	assert_str_eq (seq[0], "1");
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+	assert_str_eq (seq[1], "2");
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+	assert_str_eq (seq[2], "3");
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+	assert (seq[3] == NULL);
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+	assert_num_eq (len, 3);
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+
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+	seq_free (seq, NULL);
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+}
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+
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 static int
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 compar_even (void *match,
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              void *value)
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@@ -631,6 +763,9 @@ main (int argc,
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 	test_func (test_insert, "/seq/insert");
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 	test_func (test_insert_destroys, "/seq/insert_destroys");
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 	test_func (test_remove, "/seq/remove");
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+	test_func (test_remove_unsorted, "/seq/remove_unsorted");
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+	test_func (test_remove_first, "/seq/remove_first");
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+	test_func (test_remove_last, "/seq/remove_last");
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 	test_func (test_remove_destroys, "/seq/remove_destroys");
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 	test_func (test_filter, "/seq/filter");
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 	test_func (test_filter_null, "/seq/filter_null");
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diff --git a/library/seq.h b/library/seq.h
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index 694965b..5d48848 100644
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--- a/library/seq.h
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+++ b/library/seq.h
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@@ -44,6 +44,12 @@ typedef void *     (* seq_copy)               (void *value);
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 typedef void       (* seq_destroy)            (void *value);
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+typedef int        (* seq_search)             (void **seq,
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+                                               int low,
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+                                               int high,
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+                                               void *match,
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+                                               seq_compar compar);
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+
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 seq_voidp          seq_push                   (seq_voidp seq,
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                                                int *length,
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                                                void *value) WARN_UNUSED;
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@@ -62,6 +68,12 @@ void               seq_remove                 (seq_voidp seq,
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                                                seq_compar compar,
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                                                seq_destroy destroy);
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+void               seq_remove_unsorted        (seq_voidp seq,
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+                                               int *length,
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+                                               void *match,
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+                                               seq_compar compar,
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+                                               seq_destroy destroy);
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+
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 seq_voidp          seq_lookup                 (seq_voidp seq,
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                                                int *length,
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                                                void *match,
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-- 
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2.14.4
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