From 9724ed55060e02ca63163e146c70b079bdddfe67 Mon Sep 17 00:00:00 2001
From: uz <uz@b7a2c559-68d2-44c3-8de9-860c34a00d81>
Date: Wed, 17 Aug 2011 15:26:40 +0000
Subject: [PATCH] Added cc65_seginfo_byname.

git-svn-id: svn://svn.cc65.org/cc65/trunk@5190 b7a2c559-68d2-44c3-8de9-860c34a00d81
---
 src/dbginfo/dbginfo.c | 74 ++++++++++++++++++++++++++++++++++++++++++-
 src/dbginfo/dbginfo.h |  8 +++++
 2 files changed, 81 insertions(+), 1 deletion(-)

diff --git a/src/dbginfo/dbginfo.c b/src/dbginfo/dbginfo.c
index 4f096b0ca..518e46ad9 100644
--- a/src/dbginfo/dbginfo.c
+++ b/src/dbginfo/dbginfo.c
@@ -1264,7 +1264,7 @@ static int CompareModInfoByName (const void* L, const void* R)
 }
 
 
-
+                  
 /*****************************************************************************/
 /*                                Scope info                                 */
 /*****************************************************************************/
@@ -3858,6 +3858,42 @@ static LineInfo* FindLineInfoByLine (Collection* LineInfos, cc65_line Line)
 
 
 
+static SegInfo* FindSegInfoByName (Collection* SegInfos, const char* Name)
+/* Find the SegInfo for a given segment name. The function returns the segment
+ * info or NULL if none was found.
+ */
+{
+    /* Do a binary search */
+    int Lo = 0;
+    int Hi = (int) CollCount (SegInfos) - 1;
+    while (Lo <= Hi) {
+
+        /* Mid of range */
+        int Cur = (Lo + Hi) / 2;
+
+        /* Get item */
+        SegInfo* CurItem = CollAt (SegInfos, Cur);
+
+        /* Compare */
+        int Res = strcmp (CurItem->Name, Name);
+
+        /* Found? */
+        if (Res < 0) {
+            Lo = Cur + 1;
+        } else if (Res > 0) {
+            Hi = Cur - 1;
+        } else {
+            /* Found */
+            return CurItem;
+        }
+    }
+
+    /* Not found */
+    return 0;
+}
+
+
+
 static int FindSymInfoByName (const Collection* SymInfos, const char* Name,
                               unsigned* Index)
 /* Find the SymInfo for a given file name. The function returns true if the
@@ -5197,6 +5233,42 @@ const cc65_segmentinfo* cc65_segmentinfo_byid (cc65_dbginfo Handle, unsigned Id)
 
 
 
+const cc65_segmentinfo* cc65_segmentinfo_byname (cc65_dbginfo Handle,
+                                                 const char* Name)
+/* Return information about a segment with a specific name. The function
+ * returns NULL if no segment with this name exists and otherwise a
+ * cc65_segmentinfo structure with one entry that contains the requested
+ * information.
+ */
+{
+    DbgInfo*            Info;
+    SegInfo*            S;
+    cc65_segmentinfo*   D;
+
+    /* Check the parameter */
+    assert (Handle != 0);
+
+    /* The handle is actually a pointer to a debug info struct */
+    Info = (DbgInfo*) Handle;
+
+    /* Search for the segment */
+    S = FindSegInfoByName (&Info->SegInfoByName, Name);
+    if (S == 0) {
+        return 0;
+    }
+
+    /* Allocate memory for the data structure returned to the caller */
+    D = new_cc65_segmentinfo (1);
+
+    /* Fill in the data */
+    CopySegInfo (D->data, S);
+
+    /* Return the result */
+    return D;
+}
+
+
+
 void cc65_free_segmentinfo (cc65_dbginfo Handle, const cc65_segmentinfo* Info)
 /* Free a segment info record */
 {
diff --git a/src/dbginfo/dbginfo.h b/src/dbginfo/dbginfo.h
index fde11c98a..f062c085d 100644
--- a/src/dbginfo/dbginfo.h
+++ b/src/dbginfo/dbginfo.h
@@ -367,6 +367,14 @@ const cc65_segmentinfo* cc65_segmentinfo_byid (cc65_dbginfo handle, unsigned id)
  * structure with one entry that contains the requested segment information.
  */
 
+const cc65_segmentinfo* cc65_segmentinfo_byname (cc65_dbginfo handle,
+                                                 const char* name);
+/* Return information about a segment with a specific name. The function
+ * returns NULL if no segment with this name exists and otherwise a
+ * cc65_segmentinfo structure with one entry that contains the requested
+ * information.
+ */
+
 void cc65_free_segmentinfo (cc65_dbginfo handle, const cc65_segmentinfo* info);
 /* Free a segment info record */